NEED HELP ASAP
thanks+BRAINLIST a only for correct answers
Thank you!

1.which type of image is right side up but left and right are reversed
A.real
B.virtual

2.Real images are:
A.always inverted
B.magnified or diminished
C.can be obtained on screen
D.all the above

Answer:

let the voltages of the cell be V and R the equivalent resistance of the circuit.

I1=RV∵ only one cell connected  ;

I2=RV+V=R2V∵ two cells connected in series  ;

I3=RV+RV=R2V∵ two cells connected in parallel ⇒ total current is same as sum of the currents due to each.

Now , 

LHS = 3I3I2=3R2VR2V=3(R24V2) 

RHS = 2I3(I1+I2)=2R2V(RV+R2V)=2R2VR3V=3R2therefore, LHS = RHS   

Barbell's mass: 20.1 kg. Projectile's mass: 302 kg. Cannon's potential energy: 1.48 x 10¹³ J. Calculated using gravitational potential energy formula.

solution:

Using the formula for gravitational potential energy:

Potential energy = mass x gravity x height

where mass = Suleimanoglu's lifting capacity (3 x 62 kg = 186 kg),

gravity = 9.8 m/s² (acceleration due to gravity on Earth),

and height = 1.70 m

Rearranging the formula to solve for the mass:

mass = potential energy / (gravity x height)

Substituting the given values:

mass = 3.04 x 10³ J / (9.8 m/s² x 1.70 m)

mass = 20.1 kg (rounded to one decimal place)

Answer:

Projectile's mass = 302 kg

solution:

Using the same formula for gravitational potential energy:

Potential energy = mass x gravity x height

where mass = the projectile's mass,

gravity = acceleration due to gravity at sea level (9.8 m/s²),

and height = 0.1 x 180 km = 18 km = 18000 m (altitude when the projectile was at 10% of its maximum height)

Rearranging the formula to solve for the mass:

mass = potential energy / (gravity x height)

Substituting the given values:

mass = 1.48 x 10¹⁰ J / (9.8 m/s² x 18000 m)

mass = 302 kg (rounded to the nearest integer)

Answer:

Potential energy associated with the cannon = 1.48 x 10¹³ J

Using the same formula for gravitational potential energy:

Potential energy = mass x gravity x height

where mass = the cannon's mass,

gravity = acceleration due to gravity at sea level (9.8 m/s²),

and height = the height at which the cannon is lifted

Rearranging the formula to solve for the potential energy:

potential energy = mass x gravity x height

Substituting the given values:

mass = 3.6 x 10⁴ kg

gravity = 9.8 m/s²

height = potential energy / (mass x gravity) = 1.48 x 10¹³ J / (3.6 x 10⁴ kg x 9.8 m/s²)

potential energy = 4.04 x 10¹⁰ m (rounded to two decimal places)

For more such questions on gravitational, click on:

https://brainly.com/question/940770

#SPJ11

The force constant that is needed to produce a period of 0.500 s for a 0.0150-kg mass is 2.37 N/m

Period (T) = 0.5 s

Mass (m) = 0.015 Kg

Pi (π) = 3.14

Spring constant (K) =?

The spring constant can be obtained by using the formula for calculating the period of simple harmonic motion. This is illustrated below

T = 2π√(m /K)

Square both side

T² = 4π²m / K

Cross multiply

T² × K = 4π²m

Divide both side by T²

K = 4π²m / T

K = (4 × 3.14² × 0.015) / 0.5²

K = 2.37 N/m

Learn more about spring constant:

https://brainly.com/question/9199238

#SPJ1

Answer:

Yes Kinetic and Potential energy

Iightbulb A is directly connected to the battery and its voltage remains unchanged, the current flowing through it will also remain constant.

When the switch is closed, the current in lightbulb a will increase. This is because closing the switch completes the circuit, allowing the flow of electrons from the battery to the lightbulbs. As the electrons flow through the circuit, they will encounter resistance from the filament in each lightbulb. This resistance will cause some of the electrical energy to be converted into heat and light, which is what makes the lightbulbs glow.  Since all four lightbulbs are identical, they will all have the same resistance. However, because lightbulb a is the first bulb in the circuit, it will receive the full force of the current flowing from the battery. As a result, lightbulb a will glow more brightly than the other bulbs, which will receive a slightly weaker current.  In summary, when the switch is closed, the current in lightbulb a will increase because it is the first bulb in the circuit and receives the full force of the current from the battery. The other bulbs will receive a slightly weaker current, causing them to glow less brightly.

Learn more about the battery here:

https://brainly.com/question/15416087

#SPJ11

Answer:

It is D

Explanation:

Make sure you read the question carefully because people get different variations

Answer:

On the other hand, acceleration is inversely proportional to the mass of the body being accelerated. That is, the greater the mass, the less acceleration.

Explanation:

Answer:

Explanation:

In order for one to carry something, they need to be exerting a force that is equal to the weight of the object. For Antonio therefore to hold the 1-pound bag, he needs to apply a 1-pound force.

Pounds measure the mass of an object. On his left hand Antonio has 1 pound and on the right he has 2. He is therefore carrying more mass on his right hand than on his left.

The angular displacement can be calculated as: Angular Displacement = 30 degrees + (ω * 1.3 seconds).

To calculate the angular displacement experienced by the diver during a double twist, we need to consider the initial angle and the time taken to complete the maneuver.

Given that half of the diver's body was inclined forward at a 30-degree angle, it implies an initial angular displacement of 30 degrees. The time taken for the maneuver is 1.3 seconds.

To determine the angular displacement, we can use the formula:

Angular Displacement = (Initial Angular Displacement) + (Angular Velocity * Time)

Since the diver performs a double twist, the angular velocity can be assumed to be constant throughout the maneuver. Let's denote it as ω.

Therefore, the angular displacement can be calculated as:

Angular Displacement = 30 degrees + (ω * 1.3 seconds)

The specific value of ω would depend on the diver's rotational speed during the double twist. With additional information on the angular velocity, we could provide a more precise calculation of the angular displacement experienced by the diver.

To learn more about angular displacement from the given link

https://brainly.com/question/12972672

#SPJ4

Answer:

The force that must be applied to the smaller piston if the crate is to be raised by the larger piston is approximately 42 N

Explanation:

The given parameters of the hydraulic lift are;

The diameter of one of the pistons = 1.5 m

The diameter of the other pistons = 8.0 cm = 0.08 m

The mass of the crate to be lifted with the larger piston, m = 1.5 × 10³ kg

The weight of the mass to be lifted by the larger piston, W₁ = m × g

Where;

g = The acceleration due to gravity = 9.8 m/s²

Therefore;

W₁ = 1.5 × 10³ kg × 9.8 m/s² = 14,700 N

The area of the surface of the circular piston, A = π × r²

Where;

r = The piston's radius

∴ The area of the larger piston with 1.5 m radius, A₁ = π × (1.5 m)² = 7.06868347058 m² ≈ 7.07 m²

A₁ ≈ 7.07 m²

The area of the smaller piston with 0.08 m (8 cm) radius, A₂ = π × (0.08 m)² = 02010619298 m² ≈ 0.02 m²

A₂ ≈ 0.02 m²

The pressure in the fluid of the hydraulic lift is constant, therefore, we have;

The pressure applied to the larger piston with 1.5 m radius, P₁ = The pressure applied to the smaller piston with 0.08 m radius, P₂

∴ P₁ = P₂

\(Pressure = \dfrac{Force}{Area}\)

\(P_1 = \dfrac{W_1}{A_1} = \ P_2 = \dfrac{F_2}{A_2}\)

\(\therefore \dfrac{W_1}{A_1} = \ \dfrac{F_2}{A_2}\)

Where, F₂, represents the force that must be applied to the smaller piston if the crate is to be raised by the larger piston;

\(\therefore F_2 = A_2 \times \dfrac{W_1}{A_1}\)

Given that we have the ratio of two areas which have π as a factor, we have;

\(\therefore F_2 = A_2 \times \dfrac{W_1}{A_1} = 0.08^2 \times \pi \times \dfrac{14,700}{1.5^2 \times \pi } = 41.81 \overline 3\)

The force that must be applied to the smaller piston if the crate is to be raised by the larger piston, F₂ = 41.81\(\overline 3\) N ≈ 42 N.

With a potential difference of 14 volts across it, the 10.0 ohm resistor dissipates 19.6 watts of electrical power.

Any equation connecting power to current, voltage, and resistance may be used to calculate the power wasted by each resistor.

The following formula must be used to determine the amount of electrical power a resistor dissipates in a parallel circuit:

P = V²/R

In this case, the resistance is 10.0 ohms and the potential difference is 14 volts.

These values are combined together to give us:

P = (14 V)²/ 10.0 Ω

P = 196 V²/ 10.0 Ω

P = 19.6 W

To know more about electrical power visit:-

https://brainly.com/question/29869646

#SPJ1

The gravitational force Mrs. Young exerts on her computer is approximately 0.0044 Newtons.

What is computer ?

Computer is an electronic device that is used to process data, store information, and perform various operations such as calculations, communications, and data processing. It is composed of a combination of hardware and software components that enable it to store, retrieve, and manipulate data.

Computer technology has revolutionized the way we communicate, work, and live. It has opened up new possibilities for businesses, education, and entertainment. Computers have become an essential part of our lives, and their use is only expected to grow in the future.

To learn about more computer

https://brainly.com/question/23275071

#SPJ1

Answer: A standard 9V battery has about 400-600 mAh capacity. In the most basic terms, these batteries can supply about 500 milliamps for one hour before being "dead". With electricity, we measure the amount of charge flowing through the circuit over a period of time. Current is measured in Amperes (usually just referred to as "Amps"). An ampere is defined as 6.241*10^18 electrons (1 Coulomb) per second passing through a point in a circuit. In a series circuit, amperage, or amplitude, of the current remains constant and can be calculated using Ohm's law V = I/R while the voltage drops across each resistor that can be summed up to get the total resistance.

Hope this helps........ Stay safe and have a Merry Christmas!!!!!!!! :D

The vehicle travels 135 m in 6 sec while slowing down gradually at a speed of -3.5 m/s².

Using the equations of motion, we can determine how far the car traveled in 6 seconds while slowing down at a constant rate of -3.5 m/s2. In this scenario the initial velocity (u) is 33 m/s, the acceleration (a) is negative 3.5 m/s2 (deceleration), and the time (t) is 6 seconds.

To determine the final velocity (v) we must use the first equation:

v = u + at

v = 33 + (-3.5) * 6

v = 33 - 21

v = 12 m/s

Next, we can find the distance covered using the equation for distance:

s = ut + (1/2)at²

s = 33 * 6 + (1/2) * (-3.5) * (6²)

s = 198 + (-3.5) * 18

s = 198 - 63

s = 135 meters

As a result, the vehicle travels 135 m in 6 sec while slowing down gradually at a speed of -3.5 m/s².

Learn more about Velocity, here:

https://brainly.com/question/30559316

#SPJ4

The initial temperature of the water was approximately 81.67°C.

To solve this problem, we can apply the principle of energy conservation. The heat lost by the copper block is equal to the heat gained by the water.

The heat lost by the copper block can be calculated using the formula: Q1 = m1 * c1 * ΔT1,

where m1 is the mass of the copper block (40 g), c1 is the specific heat capacity of copper (0.39 J/g°C), and ΔT1 is the change in temperature (final temperature - initial temperature of the copper block).

The heat gained by the water can be calculated using the formula: Q2 = m2 * c2 * ΔT2, where m2 is the mass of the water (105 g), c2 is the specific heat capacity of water (4.18 J/g°C), and ΔT2 is the change in temperature (final temperature - initial temperature of the water).

Since the copper block and the water reach equilibrium, Q1 = Q2. Therefore, we can equate the two equations:

m1 * c1 * ΔT1 = m2 * c2 * ΔT2

Substituting the given values:

(40 g) * (0.39 J/g°C) * (95°C - initial temperature) = (105 g) * (4.18 J/g°C) * (24°C - initial temperature)

Simplifying the equation and solving for the initial temperature of the water gives us approximately 81.67°C.

for such more questions on  temperature

https://brainly.com/question/27944554

#SPJ8

Answer:

bro I'm sorry I'm only in 7th grade

Answer:

The velocity of the motorboat after 6s is 24 m/s.

Explanation:

Given;

acceleration of the motorboat, a = 4.0 m/s²

initial velocity of the motorboat, u = 0

time of motion of the motorboat = 6s

Apply the following kinematic equation to determine the velocity of the motorboat after 6 ;

v = u + at

v = 0 + (4 x 6)

v = 24 m/s

Therefore, the velocity of the motorboat after 6s is 24 m/s.

The electrons within a rectangular rod will move away when a negatively charged balloon is brought near a negatively charged rod because the electrons are repelled by each other.

Electrostatics is the study of charges at rest.

Charges at rest are charges that are not free to move or charges that do not have a path for them to flow.

The flow of electrons results in an electric current. However, when charged materials are brought near other charged materials, they will either be repelled or attracted to each other depending on the nature of the charges.

Learn more about electrostatics at: https://brainly.com/question/15167106

#SPJ1

The distance between the two buses is 48km.

Let us assume that the velocity of the first bus is 36 km/h and that of the second bus is 108 km/h.

To find the distance between them, we will consider that both buses move in opposite directions.

Distance travelled by bus 1 in 20 minutes = 36 km/h × 20 min ÷ 60 min/h = 12 km

Distance travelled by bus 2 in 20 minutes = 108 km/h × 20 min ÷ 60 min/h = 36 km

Total distance between them = distance travelled by bus 1 + distance travelled by bus 2= 12 km + 36 km= 48 km

Therefore, the distance between them in 20 minutes is 48 km.

For more such questions on distance:

https://brainly.com/question/30395212

#SPJ8

A direct answer to your question is that the solar system formed primarily from gas and dust materials.

To explain this further, the solar system is believed to have formed around 4.6 billion years ago from a cloud of gas and dust known as the solar nebula. Over time, gravity caused the nebula to collapse and spin, forming a disk-like structure known as the protoplanetary disk. The center of this disk eventually became the sun, while the remaining materials in the disk clumped together and formed the planets, moons, asteroids, and comets. These materials were primarily made up of hydrogen, helium, and other elements such as carbon, oxygen, nitrogen, and iron.

The solar system primarily formed from two materials: hydrogen and helium. These elements were the most abundant in the early universe and came together under the influence of gravity to form the Sun and other celestial bodies.

To know more about solar system, visit:

https://brainly.com/question/29693826

#SPJ11

Answer:

x = 5[km]

Explanation:

We must convert the time from minutes to hours.

\(t=30[min]*\frac{1h}{60min}= 0.5[h]\\\)

We know that speed is defined as the relationship between space and time.

\(v=x/t\)

where:

x = space [m]

t = time = 0.5 [h]

v = velocity [m/s]

Now replacing:

\(x = 10[\frac{km}{h} ]*0.5[h]\\x=5[km]\)

the answer is:

d. the spanish and american indian tribes enjoyed exclusively friendly relations.

Answer:

b. the spanish and american indian tribes enjoyed exclusively friendly relations.

Explanation:

Answer:calcite

Explanation:

Based on these observations, Calcite is the identity of this mineral sample. Therefore, the correct option is option C among all the given options.

Typically created by inorganic processes, a mineral is a naturally occurring homogenous solid having a specific chemical composition as well as a highly organized atomic arrangement. About 100 of the known mineral species—the so-called rock-forming minerals—make up the majority of the known mineral species, which number in the thousands.

A mineral is different from its laboratory-produced synthetic counterparts since it must by definition develop through natural processes. Based on these observations, Calcite is the identity of this mineral sample.

Therefore, the correct option is option C among all the given options.

To know more about mineral, here:

https://brainly.com/question/15844293

#SPJ6

Camping - Even on sweltering summer days, camping is a delightful outdoor activity.

However, if it's hot outside, your tent may become very uncomfortable. Thankfully, there are ways to keep your tent cool. By making the most of your supplies, setting up your tent in the ideal location, and using a tarp or umbrella to block off the sun, you may avoid the heat.

Three methods to keep the tent cool:

1. Bring your cooler of ice into the tent.

2. Use a battery-operated fan to circulate the air.

3. Open your tent’s door and vents if it has any.

4. Sleep on top of your sleeping bag to stay cool.

5. Remove the rain fly if the weather forecast doesn’t predict rain.

To learn more about Camping:

https://brainly.com/question/14468260

#SPJ1

Explanation:

Look, if you want to connect the capacitors parallel which the question wants you to do so, first

C1+C2=Ct

0.22μF+470μF

470.22μF

then you got the formula

C=Q/V===> Qt=CV===>

470.22×10‐⁶×60= do the calculations and it's yours

Answer:

The charge of an element is equal to the number of protons minus the number of electrons. The number of protons is equal to the atomic number of the element given in the periodic table. The number of electrons is equal to the atomic number minus the charge of the atom.

Explanation:

Answer:

hydrogen sometimes has a charge of zero or (less commonly) -1. Although noble gas atoms almost always carry a charge of zero, these elements do form compounds, which means they can gain or lose electrons and carry a charge.

Explanation: