A projectile moves in two dimensions - both horizontally and vertically. Since these two components of motion are independent of each other, two distinctly separate sets of equations are needed –

Define Each Variable

The angle in the sky covered by the Orion Nebula fainter extended gas and dust is approximately 65 arc minutes from top to bottom. This is equivalent to about 1.08 degrees.

The Orion Nebula, also known as Messier 42 or M42, is a diffuse nebula located in the constellation Orion. It is one of the brightest nebulae visible from Earth and is a popular target for amateur astronomers.

The nebula is composed of gas and dust, and is known for its fainter extended gas and dust, which covers an angle of approximately 65 arc minutes from top to bottom. This is equivalent to about 1.08 degrees, or just over one degree. To put this in perspective, the full moon covers about 30 arc minutes, or 0.5 degrees, in the sky. So the angle covered by the Orion Nebula is just over twice the size of the full moon.

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Answer:

C) ballon does determine the direction

Explanation:

Explanation:

its B, It would push it the opposite

Before the cannon ball is in the air this force is basically:

And the force of the explosion is:

After this force is applied to the cannonball after being shooted;

So, the force of the cannonball only depends on the acceleration of gravity.

Therefre, tehe statement is False

In the helium nucleus, there are two protons. An electric force exerted on two proton is 2.30 10–26 N in strength.

According to Coulomb's law, the force F among 2-point charge, q1 and q2, that are separated by the a distance r is calculated as F=k|q1q2|r2. k=8.988109Nm2C28.99109Nm2C2. Although Coulomb's law has a straightforward formula, proving it wasn't an easy feat.

The Coulomb energy or Coulomb interactions is another name for the electrostatic force. It is the force that pulls or attracts two electrically charged things together. While opposite charges attract one another, like charges repel one another. To determine the resultant force between two charges, utilize Coulomb's law.

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Answer:

Scientists predict the location of electrons in the modern model of the atom by using the Heisenberg uncertainty principle.

Answer:

v1 = −2.201946 m/s ( to the left)

v2 = 0.7780534 m/s ( to the right)

Explanation:

Given the following :

Mass of first glider (m1) = 0.149kg

Initial Speed of first glider (u1) = 0.710 m/s

Mass of second glider (m2) = 0.308kg

Initial Speed of second glider (u2) = 2.27m/s

For elastic collision:

m1u1 + mu2u2 = m1v1 + m2v2

Where V1 and v2 = final velocities if the body after collision.

Taking right as positive ; left as negative

u1 = 0.710m/s ; u2 = - 2.27m/s

u1 - u2 = - (v1 - v2)

0.710 - - 2.27 = - v1 + v2

v2 - v1 = 2.98 - - - - (1)

From:

m1u1 + mu2u2 = m1v1 + m2v2

(0.149 * 0.710) + ( 0.308 * - 2.27) = (0.149 * v1) + (0.308 * v2)

0.10579 + (-0.69916) = 0.149 v1 + 0.308v2

−0.59337 = 0.149 v1 + 0.308v2

Dividing both sides by 0.149

v1 + 2.067v2 = −0.59337 - - - - - (2)

From (1)

v2 = 2.98 + v1

v1 + 2.067(2.98 + v1) = −0.59337

v1 + 6.16 + 2.067v1 = −0.59337

3.067v1 = −0.59337 - 6.16

3.067v1 = −6.75337

v1 = −6.75337 / 3.067

v1 = −2.201946 m/s ( to the left)

From v2 = 2.98 + v1

v2 = 2.98 + (-2.201946)

v2 = 0.7780534 m/s ( to the right)

Answer:

About 7,390,000 results (1.04 seconds)

Image result for What is the difference between the momentum and the kinetic energy of an object

One of the most obvious differences between kinetic energy and momentum is that kinetic energy depends quadratically on velocity (it increases as v2), while momentum depends linearly on velocity (it increases as just v). This means that kinetic energy actually increases way faster with velocity as momentum does.

Explanation:

Answer:

a. 15,000J

b. .76m

Explanation:

KE = (1/2)m*v²

KE = .5*1000kg*30m/s

KE = 15000J

PE = m*g*h

7500J = 1000kg*9.81m/s²*h

7500J = 9810*h

h = .76m

A spectrometer (c) is used by astronomers to separate light into its individual colours.

A spectrometer is a tool used in science to examine the characteristics of light. It functions by dividing light into its many wavelengths or colours, enabling astronomers to examine the spectra of celestial objects' emissions and absorptions. Spectrometers can be made to work in the visible, ultraviolet, and infrared wavelength ranges, among others. A slit to let light through, a dispersion component such a prism or diffraction grating, and a detector to assess the intensity of the various wavelengths are the standard components of such devices.

Astronomers can create a spectrum—a graph depicting the intensity of light at each wavelength—by passing light through a spectrometer. This spectrum offers important details regarding the makeup, temperature, and motion of celestial objects. Astronomers can identify elements that are present, ascertain their abundances, and investigate a variety of physical processes taking place in celestial objects by carefully examining the distinct patterns and features in the spectrum.

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SMM2 refers to the Standard Method of Measurement 2. It is a document that specifies the method and processes used in measuring buildings and civil engineering works. SMM2 is commonly used in the construction industry.

The following are explanations of the clauses under Standard Method of Measurement 2 (SMM2):

i. D.10: This clause under SMM2 relates to the painting of metal and timber surfaces. It stipulates that when painting the surfaces of timber or metal, the preparation of surfaces and application of paint must conform to manufacturer specifications. It also specifies that the paint must be applied using a brush, roller, or spray. The clause then goes on to outline specific measurements for the thickness of paint coating to be applied on surfaces.

ii. D.12.4: This clause under SMM2 refers to the construction of walls using concrete blocks. It states that the concrete blocks used should have a minimum density of 1500 kg/m3. It also outlines specific measurements for the thickness of the mortar to be used for bonding the blocks together. The clause further specifies the measurement of the joint thickness between blocks.

iii. D.12.6: This clause under SMM2 refers to the rendering of walls with a cement mortar mix. It specifies that before rendering, the surface of the wall must be clean, dry, and free of debris. It also outlines specific measurements for the thickness of the rendering to be applied to the wall. The clause then stipulates that the rendering should be finished with a smooth surface that conforms to the architect's specifications.

iv. D.12.8: This clause under SMM2 refers to the painting of interior plastered walls. It stipulates that the preparation of surfaces and application of paint must conform to manufacturer specifications. It also specifies that the paint must be applied using a brush, roller, or spray. The clause then goes on to outline specific measurements for the thickness of paint coating to be applied on surfaces.

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Answer:

0.1 amps or A

Explanation:

I believe to calculate that you would have to use the formula V = IR and change it to:

I = V/R

I = 1.5/15

I = 0.1 amps or A

Infrared radiation is emitted by planets and star-forming clouds.

Infrared radiation is a type of electromagnetic radiation with a longer wavelength than visible light, but shorter than radio waves. It is emitted by all objects with a temperature above absolute zero, including planets and star-forming clouds. This type of radiation is useful for observing astronomical objects because it can penetrate through dust and gas clouds that block visible light.

Infrared radiation is emitted by planets due to their thermal energy. The planets absorb radiation from the Sun and re-emit it as infrared radiation. Observing the infrared radiation from a planet can reveal information about its temperature, composition, and surface features.

Star-forming clouds also emit infrared radiation due to the heat generated by the formation of new stars. As these clouds collapse and fragment, they heat up and emit radiation across the electromagnetic spectrum, including in the infrared region. This allows astronomers to study the early stages of star formation and the physical conditions within these clouds.

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The distance and direction between start and finish. - displacement

The size of a quantity. - magnitude

The process by which an object moves from one location to another. - motion

Quantities that can only be characterized by their magnitude. - scalars

Quantities that have both magnitude and direction. - vectors

An object's speed and direction are measured. - velocity

Measurement of the rate of change in an object's velocity over time. - acceleration

How steep the line on a graph is; run /rise. - slope

Graphs are used for a variety of purposes, but their main function is to help visually represent data or information in a clear and concise way. Graphs can be used to illustrate patterns, relationships, and trends that may not be easily apparent from looking at raw data.

For example, graphs can be used to show changes in variables over time, compare the values of different variables, or highlight the relationship between two variables. They can be used in many different fields, including science, economics, business, and social sciences.

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Answer:

theory is cxorrect

Explanation:

The Earth rotates on its axis every 24 hours (relative to the Sun) and revolves in orbit around the Sun once every year.

The most direct evidence of daily rotation is via a Foucault pendulum, which swings in the same plane as the Earth rotates beneath it. At either pole, the swinging plane mirrors the Earth's 24 hour period. Some rotation is observed at all other locations on the Earth's surface as well, except for the equator.

The most direct observational evidence for Earth's orbital motion is the apparent shift of nearby stars after six months, as the Earth moves from one side of its orbit to the other. Because of the large distance to even the nearest start, this parallax shift is too small to been seen without a telescope.

So the Earth rotates around its axis as it revolves around the sun. It takes the Earth 365 days, or one year, to complete a revolution. Leftover momentum from when planets were forming makes the Earth, and all planets in the solar system, rotate and revolve.

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Answer:

what a fat bear I love physics

An increase in wavelength and a decrease in frequency.

The energy of a photon is directly proportional to its frequency, which means that higher frequency photons have higher energy. According to the equation E=hf (where E is energy, h is Planck's constant, and f is frequency), an increase in energy can only be achieved by an increase in frequency. However, the speed of light is constant, so an increase in frequency must be accompanied by a decrease in wavelength (since wavelength and frequency are inversely proportional). Therefore, an increase in the energy of a photon corresponds to an increase in wavelength and a decrease in frequency.
An increase in energy of a photon leads to an increase in wavelength and a decrease in frequency.

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Answer:

Answer: B. Explanation: For an object to accelerate the force on it must be increased. According to Newton's second law of motion.

Explanation:

I do Accelerate to good luck

F21 is equal to F12 due to Newton's third law of motion; both charges exert equal and opposite forces.

According to Newton's third law of motion, every action has an equal and opposite reaction.

In the context of the charges q1 and q2, this means that if q1 exerts a force (F12) on q2, then q2 will exert an equal and opposite force (F21) on q1.

The force between the two charges can be calculated using Coulomb's law: F = k * (q1 * q2) / r^2, where k is Coulomb's constant, and r is the distance between the charges.

However, in this case, you don't need to calculate the force since F21 will be equal to F12, regardless of their magnitudes, as dictated by Newton's third law.

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F21 is equal to F12 due to Newton's third law of motion; both charges exert equal and opposite forces.

According to Newton's third law of motion, every action has an equal and opposite reaction.

In the context of the charges q1 and q2, this means that if q1 exerts a force (F12) on q2, then q2 will exert an equal and opposite force (F21) on q1.

The force between the two charges can be calculated using Coulomb's law: F = k * (q1 * q2) / r^2, where k is Coulomb's constant, and r is the distance between the charges.

However, in this case, you don't need to calculate the force since F21 will be equal to F12, regardless of their magnitudes, as dictated by Newton's third law.

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Frequency of Simple pendulum = 0.61 Hz. The pendulum oscillates with a frequency of v = ω/2π, cycles per second, and its period, T, is equal to 2π(l/g).

As a result, the pendulum's frequency determines how frequently it swings back and forth during a certain length of time. How many times the pendulum swings back and forth in 60 seconds, for instance. The length of pendulum will affect its frequency. It implies that the swing rate will be higher and the pendulum shorter.

Number of oscillations that were completed in the given unit of time. f = 1/T = ω/2π 4. Period of time (T) T = 2 π/ω.

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Answer:

Explanation:

The communicator

Energy required to take a 15. 0-g sample of ice at −15. 0 °c to liquid water at 45. 0 °c is 8.75KJ

In proportion to the substance's specific heat capacity for that physical phase, enough heat must be provided to raise the temperature of a substance in that state. Specific heat capacity vary between physical stages.

A certain amount of heat is also necessary for a substance to transition from one phase to another, for as from solid to liquid or from liquid to gas. These are the latent temperatures of the phase change, from solid to liquid for fusion, and from liquid to gas for vaporization.

Using the formula:

(n×\(H_{f}\))+m×\(C_{s}\)×ΔT = Energy(Q)

(0.83×6.01)+(15.0×0.004184×60) = Q

Q = 8.75KJ

Therefore, energy required to take a 15. 0-g sample of ice at −15. 0 °c to liquid water at 45. 0 °c is 8.75KJ

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Answer:

If you are going someplace, you might want to tell which way you were going and how fast for traffic.

Explanation:

The acceleration of the boxes are 1.625 m/s^2.

What is acceleration?

Acceleration is a measure of how much an object's velocity changes over time. Velocity is a vector quantity that includes both speed and direction, so acceleration can refer to changes in speed, direction, or both. Acceleration is typically measured in meters per second squared (m/s^2) or feet per second squared (ft/s^2). Positive acceleration indicates an increase in speed, while negative acceleration indicates a decrease in speed.

To find the acceleration of the boxes, we can use the formula:

force = mass x acceleration.

In this case, we know the force applied (39.0 N) and the mass of the boxes (9.00 kg + 14.0 kg + 1.00 kg = 24.00 kg).

So we can calculate the acceleration as:

force = mass x acceleration

39.0 N = 24.00 kg x acceleration

acceleration = force / mass

acceleration = 39.0 N / 24.00 kg

acceleration = 1.625 m/s^2

Therefore, the acceleration is 1.625 m/s^2.

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Answer:

Explanation:

Pressure can be defined as the force per unit area hence there is an inverse relationship between pressure exerted by a substance and the area of that substance. For instance,

(1) if a bag of sand if filled with sand and an individual steps on this bag. The feet of he individual will form no shape/displace little sand sideways in the bag. But if the same quantity of sand is poured in a bigger bag (larger area) and the same individual stands on the bag, the feet of the individual will "sink" (decreased pressure from the bag) displacing some sand sideways.

(2) The straps of a bag are made wide (and not slim) so that the bag can exert lesser pressure on the shoulders when the same quantity of load is carried by the bag than if the straps were made narrow/slim.

The specific heat of a substance of a container affect the quantity of substances that can be accommodated in the container at a given temperature.

The specific heat capacity of a substance is the quantity of heat required to raise the temperature of a unit mass of the substance.

Mathematically, the formula relating specific heat capacity and heat capacity of a substance is given as;

Q = m x  c  x Δθ

where;

From the formula above we can make mass " m " the subject of the formula;

m = ( Q ) / (  c  x Δθ )

As the specific heat of a substance increases, the smaller the mass of the substance that can be held in a container at equal heat gain and temperature and vice versa.

Thus, the specific heat of a substance affects the performance of a container as it depends the mass or volume of the substance that can be held in a container at a constant heat capacity and temperature.

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Answer:1.36078

Explanation:

Answer:

a. 6 A

b. 3 V

Explanation:

a. By using Kirchoff's Junction Rule, which states that the current flowing into a junction must equal the current flowing out of it. As you can see in the first 3-way split, the current splits into 3A, 2A, and 1A. This means that when the 3 wires rejoin, the current must have a magnitude equal to the total of the current flowing in all 3 branches, which would equate to 3+2+1 = 6 A.

b. Voltage differences across branches of a parallel circuit are identical. This means that we can treat the 3 resistors as one, and say that the voltage drop across that whole area is 3 V. Since that is the only voltage drop in the circuit, the battery's voltage drop must also be 3 V to equate to it. This is explained by Kirchoff's Loop Rule.

Answer:

450N

Explanation:

Given parameters:

Mass of object  = 450kg

Initial velocity  = 15m/s

Final velocity  = 75m/s

Time  = 1min  = 60s

Unknown:

Force applied  = ?

Solution:

To solve this problem, from Newton's second law of motion, we know that;

  Force  = mass x acceleration

  Acceleration  = \(\frac{v - u }{t}\)

 v is the final velocity

 u is the initial velocity

 t is the time taken

Now;

    Force  = mass x  \(\frac{v - u }{t}\)

   Force  = 450 x \(\frac{75 - 15}{60}\)  = 450N