Answer:
What he said:)
Explanation:
Have an amazing day you are loved
Which two sentances describe how meiosis differs from mitosis?
Answer:
"Meiosis produces cells with half the chromosomes of the parent cell" and "Meiosis produces either male or female gametes." The correct options are
Explanation:
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Help Please!
Think about how you can get the color white from using light versus how you can get the color white from using paint or dye. Now, think about how you can get the color black from using light versus from paint or dye. Using this, explain why we call coloring from light “additive” and coloring from paint or dyes “subtractive”.
Answer: Subtractive colors absorb OR subtract some lights causing it to reflect, and creating white.
Explanation:
Subtractive colors are created by completely or partially absorbing (or subtracting) some light wavelengths and reflecting others.
6. Why would the electrons spend most of their time close to the nucleus?
Electrons spend most of their time close to the nucleus because they are attracted to the positively charged protons in the nucleus by the electromagnetic force.
This force causes the electrons to move in an orbit around the nucleus, much like planets orbiting around the sun.
The closer an electron is to the nucleus, the stronger the attractive force between them. This results in the electrons being tightly bound to the nucleus, and they tend to spend most of their time in the lowest energy level, known as the ground state. In this state, the electrons are as close to the nucleus as possible, which is why they spend most of their time in that region.
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A 1.1-m tall child is standing 6.0 m from a spherical convex mirror. The child’s image is 0.40 m behind the mirror. What is the image height and focal length of the mirror?
Answer:
1 / i + 1 / o = 1 / f thin lens equation
(i + o) / o i = 1 / f
f = o i / (i + o) = 6 * -.4 / (-.4 + 6) = -2.4 / 5.6 = -.42 m
The focal length is -.42 m indicating a convex mirror
M = -I / O = -.4 / 6 = -.067 negative magnification indicates erect image
O = M * 1.1 = -.067 * 1.1 = -.073 m height of image
One must be careful with signs because they can vary with textbooks
Which action might lead scientists to develop new explanations about the universe?
Answer:
Designing experiments to replicate the conditions in which life may have first evolved on Earth
Explanation:
In 1953, Stanley L. Miller and Harold C. Urey conducted an experiment to prove that life started from inanimate objects. The research was conducted by utilizing proposed chemical substances, mixed together through a scientific design process. The outcome of the research is the predicted atmospheric conditions before the pre-living form started on earth.
Therefore, in this case, the action that might lead scientists to develop new explanations about the universe is "Designing experiments to replicate the conditions in which life may have first evolved on Earth."
Question 7 (1 point)
An air mass exists off the Pacific coast of California. What type of air mass is this and
what are its main characteristics?
Choose ALL that apply
Lesson 1.07
Maritime
Polar
Continental
Polar
Maritime
Polar
Maritime
Tropical
Maritime
Tropical
Continental
Tropical
Maritime
Tropical
forms over warm water
warm, humid air mass
its a polar air mass
brings rainy or muggy weather
Answer:
Forms over water, warm humid air mass, it's a polar air mass
Explanation: I think that's right sorry if it's not..
GL! :)
what wavelength should be used to measure the absorbances for the kinetics trials?
The wavelength used to measure absorbances for kinetics trials should correspond to the maximum absorbance of the species involved in the reaction being studied.
What is kinetics trials?
In kinetics trials, the absorbance of a sample is measured as a function of time to track the progress of a chemical reaction. The choice of wavelength for absorbance measurement depends on the specific reactants and products involved, as different substances have different absorption properties.
To accurately measure absorbance changes over time, it is crucial to select a wavelength at which the species of interest exhibits significant absorbance. This is typically determined by conducting a preliminary analysis or using prior knowledge of the substances involved in the reaction.
By selecting the wavelength at which the species has the highest absorbance, we ensure that the changes in absorbance observed during the reaction are sensitive and provide reliable kinetic data. The specific wavelength will vary depending on the chemical system under investigation, and it is important to consult relevant literature or perform preliminary experiments to determine the optimal wavelength for absorbance measurements in kinetics trials.
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Suppose you needed to push a 1,500-N sofa up a frictionless ramp with a 30° angle. How much force would you have to apply to the sofa?Show your work below.
Answer:
1299N
Explanation:
GIven data
Weight W= 1500N
Angle Ф= 30°
The applied force up the frictionless ramp is gotten by applying the formula below
F= WcosФ
substitute
F=1500 cos 30
F = 1500*0.8660
F= 1299N
Hence the applied force is 1299N
Can anyone help it’s the end of the 9 weeks I NEED HELP ILL GIVE BRAINLIST.
Answer:
it was equal to the weight of the object
hope it helped ☺️
A 1,500-kg car moving on a flat, horizontal road negotiates a curve. If the radius of the curve is 20.0 m and the coefficient of static friction between the tires and dry pavement is 0.500, find the maximum speed the car can have and still make the turn successfully.
The maximum speed the car can have and still make the turn successfully is 11.5 m/s.
To find the maximum speed the car can have and still make the turn successfully, we need to consider the centripetal force acting on the car and the maximum force of static friction that can be provided by the tires.
Centripetal force = \((mass * velocity^2) / radius\)
Maximum force of static friction = coefficient of static friction x normal force
In this case, the normal force is equal to the weight of the car, which is given by:
Weight = mass x gravity
Weight = \(1,500 kg * 9.8 m/s^2\)
Weight = 14,700 N
Substituting these values into the equations, we get:
Centripetal force = \((1,500 kg * v^2) / 20.0 m\)
Centripetal force = \(75 v^2 N\)
Maximum force of static friction = 0.500 x 14,700 N
Maximum force of static friction = 7,350 N
For the car to make the turn successfully, the centripetal force must be equal to or less than the maximum force of static friction. Therefore:
\(75 v^2 N <= 7,350 N\)
Solving for v, we get:
v ≤ 11.5 m/s
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dim your high-beam headlights to low-beams within ______ feet when a vehicle is coming towards you.
When a vehicle is approaching you, it is important to dim your high-beam headlights to low beams within a distance of approximately 500 feet.
This distance provides enough time for the oncoming driver to adjust their vision and safely navigate the road. By dimming your high beams, you reduce the risk of blinding the other driver and causing potential accidents or discomfort. Maintaining proper headlight etiquette promotes safety and ensures a clear line of sight for all drivers on the road, allowing for a smoother and more secure driving experience during nighttime or low visibility conditions.
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Deimos, a satellite of Mars, has an average radius of 6.3 km. If the gravitational force between Deimos and a 3.0 kg rock at its surface is 2.5 * 10−2 N what is the mass of Deimos?
The mass of Deimos is approximately 9.52 x 10^15 kg.
To find the mass of Deimos, we can use the formula for gravitational force:F = G * (m1 * m2) / r^2. where F is the gravitational force between two objects, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers of mass.
In this problem, we know the radius of Deimos (r = 6.3 km = 6.3 x 10^3 m), the mass of the rock on its surface (m1 = 3.0 kg), and the gravitational force between them (F = 2.5 x 10^-2 N). We can also look up the value of G: G = 6.674 x 10^-11 N(m/kg)^2.
We want to solve for the mass of Deimos (m2). Rearranging the formula, we get: m2 = (F * r^2) / (G * m1). Substituting the given values, we get: m2 = (2.5 x 10^-2 N) * (6.3 x 10^3 m)^2 / (6.674 x 10^-11 N(m/kg)^2 * 3.0 kg). m2 = 9.52 x 10^15 kg.Therefore, the mass of Deimos is approximately 9.52 x 10^15 kg.
It is worth noting that this calculation assumes that the rock on Deimos' surface is not affecting its orbit significantly. In reality, the gravitational force between the rock and Deimos would cause some perturbations in Deimos' orbit, but they are likely to be very small due to the small mass of the rock compared to Deimos.
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To find the mass of Deimos, we can use the gravitational force formula:
F = G * (m1 * m2) / r^2
Where F is the gravitational force (2.5 * 10^(-2) N), G is the gravitational constant (6.674 * 10^(-11) Nm^2/kg^2), m1 is the mass of Deimos (which we want to find), m2 is the mass of the rock (3.0 kg), and r is the distance between their centers, which is equal to Deimos' radius (6.3 km or 6300 m).
Rearranging the formula to solve for m1 (the mass of Deimos):
m1 = (F * r^2) / (G * m2)
m1 = (2.5 * 10^(-2) N * (6300 m)^2) / (6.674 * 10^(-11) Nm^2/kg^2 * 3.0 kg)
After calculating, we find that the mass of Deimos is approximately 1.0 * 10^15 kg.
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Fighter jets on aircraft carriers are accelerated down a 270 foot "runway" in two seconds when they are taking off. A fully loaded, combat ready F-15 has a maximum take-off weight of 62,000 pounds. To ensure the pilot can reach sufficient velocity within 2 seconds a pneumatic cannon propels the plane down the runway. If this same cannon was used to launch your Toyota Corolla (mass is 2646lbs), how fast in miles per hour would you be going after reaching the end of the runway?
The speed of the Toyota Corolla would have been 143.9 mph.
What is the acceleration of the F-15?
The acceleration of the F-15 can be calculated as follows:
Acceleration = Velocity Change / Time = (Take-off Speed) / Time
where;
Take-off Speed = √(2dg /t²)
Take-off Speed = √(2 x (270 ft) x 32.2 ft/s² / (2 s)²)
T = √(17496) = 131.6 ft/s
Acceleration = Velocity Change / Time
= (131.6 ft/s) / (2 s) = 65.8 ft/s²
We can use the same acceleration to launch the Toyota Corolla, and calculate its final velocity:
Final Velocity = Initial Velocity + Acceleration x Time
where;
Initial Velocity = 0 (because the car is not moving initially), Time = 2 sFinal Velocity = 0 + (65.8 ft/s²) * (2 s) = 131.6 ft/s
Finally, we can convert the velocity from feet per second to miles per hour:
Velocity (mph) = Velocity (ft/s) x (1 hour/3600 s) x (5280 ft/mile)
= 131.6 ft/s x (1 hour/3600 s) x (5280 ft/mile)
= 143.9 mph
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Exercise Physiology
21) According to Boyle's Law: a. There is an inverse relationship between temperature and gas volume b. There is an inverse relationship between pressure and gas volume c. There is a positive relation
According to Boyle's Law, there is an inverse relationship between pressure and gas volume.
Therefore, option b. There is an inverse relationship between pressure and gas volume is the correct answer.
Boyle's Law is defined as the principle that explains the relationship between the volume and pressure of a gas at a constant temperature. It is formulated by Robert Boyle, an Irish physicist and chemist, in the 17th century. Boyle's Law states that the pressure of a given amount of gas is inversely proportional to its volume, provided the temperature remains constant.
Mathematically, it can be expressed as
P₁V₁ = P₂V₂,
where P₁ and V₁ are the initial pressure and volume of the gas, respectively, and P₂ and V₂ are the final pressure and volume of the gas. Therefore, option b. There is an inverse relationship between pressure and gas volume is the correct answer.
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A circular coil of five turns and a diameter of 30.0 cm is oriented in a vertical plane with its axis perpendicular to the horizontal component of the Earth's magnetic field. A horizontal compass placed at the coil's center is made to deflect 45.0° from magnetic north by a current of 0.600 A in the coil.(a) What is the horizontal component of the Earth's magnetic field?
The horizontal component of the magnetic field is 12.6 μT.
The magnetic influence on moving electric currents, electric charges, and magnetic materials is described by a magnetic field, which is a vector field. When a charge moves through a magnetic field, a force that is perpendicular to both its own velocity and the magnetic field operates on it.
The horizontal component of the Earth's magnetic field is perpendicular to the axis of a circular coil with five turns and a diameter of D = 30.0 cm that is vertically orientated.
A coil current of I = 0.600 A causes a horizontal compass to deflect 45.0° from magnetic north when it is positioned in the coil's center.
Let B be the magnetic field and R be the radius of the circular coil.
Then the horizontal component of the Earth's magnetic field is given as:
\(B(h) = B(coil) = \frac{\mu_{0} NI}{2R}\)
\(B(h) =\frac{4 \pi \times 10^{-7}\times(5)\times(0.6)}{0.3}\)
B(h) = 12.6 μT
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Jess wants to make her house more energy efficient. She has two options, A or B. Option A is double-glazing her patio doors, which will cost £350 and save £15 per year. Option B is insulating her loft, which will cost £460 and save £25 per year. Is option A or option B the better long-term option?
Jess wants to make her house more energy efficient. Insulating her loft, which will cost £460 and save £25 per year, is better long-term option. Therefore, option B is correct.
What is energy ?In order to accomplish work and to produce heat and light, energy must be transferred to a body or to a physical system. Energy is the quantitative attribute that does this. Energy is a preserved resource; according to the rule of conservation of energy, energy can only be transformed from one form to another and cannot be created or destroyed.
Computers, vehicles, communications, state-of-the-art medical technology, and many other things are all powered by energy. The demand for dependable and economical energy is especially pressing for emerging countries. It may enhance things or perhaps save lives.
A turbine generator set transforms mechanical energy into electrical energy to produce electricity. Natural gas, coal, nuclear fission, biomass, petroleum, geothermal, and solar thermal are examples of energy sources where the heat generated is used to produce steam.
Thus, option B is correct.
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Which is closest to earth?
Answer: andromeda galaxy
Explanation: it's our nearest galaxy neighbor.
Blake is building a treehouse. He wants to make sure the wood pieces are held together very tightly since he and his friends will be standing and hanging on them! Should he use nails or screws to hold pieces of wood together? Why? i'll give the brainliest
If Blake wants to ensure that the wood pieces are held together tightly and securely, he should use screws rather than nails.
How should the nails or screws be used to hold pieces of wood together?If Blake wants to make sure that the wood pieces are held together tightly, he should use screws rather than nails to hold the pieces of wood together.
Screws have threads along their length, which create strong grip on wood and hold it tightly in place. When screw is driven into the wood, threads cut into the wood fibers and create secure connection that resists pulling and twisting forces. In contrast, nails simply rely on friction between the wood and shank of the nail to hold the pieces together.
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A turtle moves at the speed of 0.25 m/s towards the line of arrival that is 100m away from the line of start when the turtle is 20m before the arrival line. The speed of the rabbit is 1m/s. After how many seconds of the start of the rabbit would the turtle reach the end? How long does it take the rabbit to cover the 100m? Would the rabbit beat the turtle?
We can compare the times taken by the turtle and the rabbit 320 s > 100 s This means that the rabbit will reach the arrival line much before the turtle does. Therefore, the rabbit will beat the turtle in this race.
We can start by finding the time it takes for the turtle to cover the remaining distance to the arrival line.
Distance to travel by turtle = 100 m - 20 m = 80 m
Speed of turtle = 0.25 m/s
Time taken by turtle to cover the remaining distance = distance/speed = 80 m / 0.25 m/s = 320 s
Therefore, the turtle will take 320 seconds to reach the arrival line from its starting point.
Next, we can find the time taken by the rabbit to cover the entire 100 m distance.
Speed of rabbit = 1 m/s
Time taken by rabbit to cover 100 m = distance/speed = 100 m / 1 m/s = 100 s
Therefore, the rabbit will take 100 seconds to cover the entire 100 m distance.
Now, we can compare the times taken by the turtle and the rabbit.
320 s > 100 s
This means that the rabbit will reach the arrival line much before the turtle does. Therefore, the rabbit will beat the turtle in this race.
What is arrival line?
The "arrival line" is a term used in the context of a competition where participants have to cover a certain distance. It is the point or the line beyond which the participants are supposed to cross or reach to complete the race or the competition.
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what is a bond in which electrons are shared equally called
The bond in which electrons are shared equally is called a nonpolar covalent bond.
Let's get more detailed information about the answer.
A nonpolar covalent bond is a chemical bond that occurs when two atoms share electrons equally. It arises when the two atoms have identical or nearly identical electronegativity values. As a result, the shared electrons spend equal amounts of time in the vicinity of each nucleus. These types of bonds typically occur between atoms of the same element or between different elements that share the same electronegativity.
In a nonpolar covalent bond, the shared electrons are located at the midpoint between the two atoms. The bond is symmetrical, which means that it produces no electrical dipole moment. The result is that nonpolar covalent bonds are not water-soluble because they cannot form hydrogen bonds with water molecules.
The bond in which electrons are shared equally is called a nonpolar covalent bond. The main answer to this question is Nonpolar Covalent bond.
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In the absence of air resistance, why does the horizontal component of velocity for a projectile such as a
bullet remain constant while the vertical component changes?
Explanation:
The vertical velocity changes because gravity is what brings the ball downwards, since gravity is what cause acclereation in free fall, acclereatiin will make the velocity become more negative.
There is no force happening on the ball in the horinzontal direction so according to Newton 1st law, the ball will remain in constant velocity n the horinzotnal direction.
who invented the satellite what purpose does it serve
Sputnik 1, the first man-made satellite, was released by the Eastern Bloc on October 4, 1957, as part of the Sputnik project, with Sergei Korolev serving as the program's primary designer.
What is the function of a satellite?There are a large number of satellite in use. They serve several functions, including the Satellite Navigation System, amateur radio, television transmission, and weather prediction. In order to conduct studies and acquire data, they also employ telescopes to gaze outwards at the solar system.
What are the two primary satellite types?Natural and artificial satellite are two distinct categories. The Earth and the Moon are two examples of organic satellites. The Moon orbits the earth while the Earth revolves around the Sun.
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A 3,000kg car rests on rough horizontal ground. A rope is
attached to the car and is pulled with a force of 11,000N to the
left. As a result, the car accelerates at 3 m/s2. The coefficient of
sliding friction (1) between the car and the ground is?
Answer:
0.07
Explanation:
Huge Brain
Coefficient of friction between the car and the ground will be 0.07.
Given in the question,
Mass of the car 'm' = 3000 kgForce 'F' by which the car is pulled = 11000 NAcceleration 'a' by which the car gets accelerated = 3 meters per second²Force applied on the car by which the car is accelerated,
F = ma
= 3000 × 3
= 9000 N
Force \(F_k\) to overcome the friction = 11000 - 9000
= 2000 N
Gravitational force F' on the car = mg
= 3000(9.8)
= 29400 N
Since, \(\mu_k=\frac{F_k}{F'}\)
\(=\frac{2000}{29400}\)
\(=0.068\)
≈ 0.07
Therefore, coefficient of friction between the car and the ground will be 0.07.
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What happens to the food and air that enter this healthy Simulation body
Answer:
The oxygen goes to the respiratory system and goes to the cells of the body. The food has glucose and that goes into the heart and blood vessels. Some of the glucose goes to the cells of the body.
Explanation:
The glucose contained in the food that enters the body enters the blood and heart through the blood vessels while the oxygen from air enters the body cells through the respiratory system.
Although there is a missing image a general answer is provided within the concept of your question
A healthy simulation body represents a real healthy human body, therefore when food is consumed the food is broken down in the digestive system. and
The glucose from the food will be absorbed into the blood stream of the individual, while the oxygen breathed in by the body will be absorbed into the body cells of the human.
Also some glucose from the consumed food will also be absorbed into the body cells to provide the necessary energy required by the body.
Hence we can conclude that The glucose contained in the food that enters the body enters the blood and heart through the blood vessels while the oxygen from air enters the body cells through the respiratory system.
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Two cylinders contain pistons that are connected by fluid in a hydraulic system. A force of 1,300 N is exerted on one piston with an area of 0.05 m2. What is the force exerted on the other piston that has an area of 0.08 m?
Given :
Two cylinders contain pistons that are connected by fluid in a hydraulic system.
A force of 1,300 N is exerted on one piston with an area of 0.05 m².
To Find :
The force exerted on the other piston that has an area of 0.08 m.
Solution :
Since, force is exerted between two cylinder, it means pressure is constant.
So,
\(P_1 = P_2\\\\\dfrac{F_1}{A_1} = \dfrac{F_2}{A_2}\\\\\dfrac{1300\ N}{0.05 \ m^2} = \dfrac{F_2}{0.08\ m^2}\\\\F_2 = \dfrac{1300\times 0.08}{0.05}\ N\\\\F_2 = 2080\ N\)
Hence, this is the required solution.
A pack of dogs are pulling a wooden sled and rider of combined mass
of 238 kg across dry snow. How much force do the dogs need to apply
to cause the sled to begin to move?
Answer:
FN=-Fg -> Fg=mg -> Fg = 238 kg*9.8 m/s^2 ->
Fg = -2432.4 so FN = 2432.4 -> FF = μs*FN ->
FF = 0.22*2332.4 N -> FF = 513.128 ->
Fapplied > 513.128 N
Explanation:
...
what is the dose (gy) in a thin lif dosimeter struck by a fluence of 3*10^11 e/cm^2 with t0=20 mev
The dose in a thin LiF dosimeter struck by a fluence of 3*10^11 e/cm^2 with t0=20 MeV is 0.00796 Gy.
To determine the dose (Gy) in a thin LiF dosimeter struck by a fluence of 3*10^11 e/cm² with an initial energy (T0) of 20 MeV, you would need to know the energy deposition per unit mass (in J/kg or Gray) and the mass of the dosimeter.
Here's a brief explanation of the terms:
- Dose: It is the energy absorbed per unit mass, measured in Gray (Gy). In this context, it refers to the energy absorbed by the dosimeter from the fluence of particles.
- Dosimeter: A device that measures the absorbed dose of ionizing radiation. In your case, it's a thin LiF dosimeter.
- Fluence: The number of particles (such as electrons) incident on a specific area per unit area, measured in particles/cm². In your example, it is 3*10^11 e/cm².
To find the dose (Gy), you would need more information about the energy deposition per unit mass and the mass of the dosimeter.
To calculate the dose in a thin lif dosimeter struck by a fluence of 3*10^11 e/cm^2 with t0=20 mev, we need to use the following formula:
Dose (Gy) = Fluence (electrons/cm^2) * Conversion Factor * Energy Deposition Coefficient
The conversion factor for electrons in the air is 0.876 Gy/electron/cm^2, and the energy deposition coefficient for lithium fluoride (LiF) is 1.21 eV/electron. Therefore:
Dose (Gy) = 3*10^11 e/cm^2 * 0.876 Gy/electron/cm^2 * (20 MeV * 1.6*10^-19 J/electron) / (1.21 eV/electron * 1000 J/Gy)
Simplifying the units, we get:
Dose (Gy) = 3*10^11 * 0.876 * 20 * 1.6*10^-19 / 1.21 / 1000
Dose (Gy) = 0.00796 Gy
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Hydraulic brakes use pascal’s principle. The driver exerts a force of 100 n on the brake pedal. This force is increased by the simple lever and again by the hydraulic system. Each of the identical wheel cylinders receives the same pressure and, therefore, creates the same force output f2. The circular cross-sectional areas of the pedal and wheel cylinders are represented by a1 and a2, respectively. How much pressure is transmitted in the hydraulic system? express your answer in pascals and in atmospheres.
251 atm pressure is transmitted in the hydraulic system.
According to Pascal's principle,
P₂ = P₁
⇒ F₁/A₁ ( ∵ pressure = force / area)
⇒ F₁ /πr₁²
r₁ = 0.500 m /2 = 0.250 m
An applied force of 100 N to the brake pedal acts in the cylinder through a lever. This will exert a force of 500 due to the lever of the hydraulic system.
Hence, P₂ =F₁/πr₁²
= 500 N/ π (0.250 × 10⁻²)²
= 2.55 × 10⁷ Pa
Convert the unit of the pressure from Pa to atm
P₂ = 2.55 × 10⁷ Pa ( 1 atm /1.01325 10⁵ Pa)
= 251 atm
Hydraulic systems function and carry out duties thru the use of a fluid that is pressurized. every other manner to put this is the pressurized fluid that makes things paintings. The energy of liquid gasoline in hydraulics is massive and as a result, hydraulics are generally used in heavy devices.
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A 37 cm
-diameter conducting sphere is charged to 540 V
relative to V=0
at r=∞
?
Part A
What is the surface charge density σ
?
Express your answer using two significant figures.
Part B
At what distance from the center of the sphere will the potential due to the sphere be only 20 V
?
Express your answer using two significant figures.
The distance from the center of the sphere at which the potential due to the sphere is only 20 V is approximately 1.93 m.
Part A: The surface charge density σ can be calculated using the formula σ = Q/A, where Q is the charge on the sphere and A is the surface area of the sphere. The surface area of a sphere is given by A = 4πr², where r is the radius of the sphere. Since the diameter of the sphere is given as 37 cm, the radius is 18.5 cm or 0.185 m. The charge on the sphere is given as 540 V relative to V=0 at r=∞.
Since voltage is a measure of potential energy per unit charge, the charge on the sphere can be calculated as Q = CV, where C is the capacitance of the sphere. The capacitance of a sphere is given by C = 4πεr/3, where ε is the permittivity of free space and r is the radius of the sphere.
Substituting the values,
we get C = 4π(8.85x10⁻¹²)(0.185)/3
= 1.72x10⁻¹⁰ F.
Thus, Q = CV = (1.72x10⁻¹⁰)(540)
= 9.30x10⁻⁸ C.
Finally, substituting the values in the formula σ = Q/A,
we get σ = 9.30x10⁻⁸/4π(0.185²)
= 7.66x10⁻⁵ C/m².
Part B: The potential due to the sphere at a distance r from its center can be calculated using the formula V = kQ/r, where k is the Coulomb constant. We need to find the distance at which V = 20 V.
Substituting the values, we get 20 = (9x10⁹)(9.30x10⁻⁸)/r.
Solving for r, we get r = 1.93 m. As a result, the distance from the sphere's center where the potential due to the sphere is only 20 V is roughly 1.93 m.
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the girl has a weight of 72N on moon.what will be the mass and the weight of the girl on earth.(use g earth=10m/s 2/g 9 moon=1.6m/s 2)
Answer:
F(m)= mg(m)
m=F(m)/g(m)=72/1.6=45kg
F(e)= mg(e)= 45 x 10 m/s= 450N