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Simora [160]
4 years ago
5

Select all the correct ANSWERS.

Physics
1 answer:
MissTica4 years ago
3 0
The ground exerts an equal force on the golf ball.
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The Earth's escape speed (the speed you need to get away forever) is about 40,000 kilometers per hour. Escape speed depends on t
Anvisha [2.4K]

The Moon s escape speed will be smaller than Earth's.

  • What is escape speed:

The minimum speed that is required for an object to free itself from the gravitational force exerted by a massive object.

The formula of escape speed is

  • v = \sqrt{\frac{2GM}{R} }

where

v is escape velocity

G is universal gravitational constant

M is mass of the body to be escaped from

r is distance from the center of the mass

we can say that,

Escape speed depends on the gravity of the object trying to hold the spacecraft from escaping.

we know that,

The Moon's surface gravity is about 1/6th as powerful or about 1.6 meters per second per second.

since, v ∝ g

The Moon s escape speed will be smaller than Earth's.

Learn more about escape speed here:

<u>brainly.com/question/15318861</u>

#SPJ4

5 0
2 years ago
For photons of 50 keV, 500 keV, and 5 MeV, what will be the most likely init interaction with tissue?
love history [14]

Answer:

50 KeV

Explanation:

50 KeV will be the most likely initial interaction with tissue.

Because Higher the energy lesser will the interaction with tissues, Because it will penetrate through tissue more easily in a very lesser time Whereas the photon with least energy will take more time to penetrate through the tissue, hence, higher interaction with tissue.

3 0
3 years ago
What happens when polar molecules are between oppositely charged metal plates
KatRina [158]

Answer:

They will become aligned according to the charges on the metal plate.

Explanation:

When Polar molecules are placed between oppositely charged metal plates the molecules will tend to be attracted by their corresponding oppositely charged plates that is the positive and negative plates,

A polar molecule is one which has opposite charges on its ends. Non-polar molecules however do not have charges on their end

7 0
3 years ago
What is the maximum number of lines per centimeter a diffraction grating can have and produce a complete first-order spectrum fo
Vitek1552 [10]

Answer:

1315789.47368 lines/m

Explanation:

m = Order = 1

sin\theta = 1 For maximum condition

\lambda = Wavelength = 760 nm maximum

From Rayleigh criteria we have the expression for the gap

d=\dfrac{m\lambda}{sin\theta}\\\Rightarrow d=\dfrac{1\times 760}{1}\\\Rightarrow d=760\ nm

The number of lines is the reciprocal of the slit distance

n=\dfrac{1}{d}\\\Rightarrow n=\dfrac{1}{760\times 10^{-9}}\\\Rightarrow n=1315789.47368\ /m

The number of lines is 1315789.47368 per meter

7 0
3 years ago
What happens to the temperature and thermal energy of water when it is heated in a pot on the stove?
Gekata [30.6K]

Answer:

Both its temperature and its thermal energy will increase.

Explanation:

Objects are made up of particles. For example, water is made up of water molecules. The kinetic energy of a particle of mass m and velocity v is equal to \displaystyle \frac{1}{2}\, m \cdot v^2,  

  • The thermal energy of an object measures the total kinetic energy of all its particles.
  • On the other hand, the temperature of that object measures the average kinetic energy of all these particles.

Water in that pot gains energy when the pot is heated. That would increase the total kinetic energy of these water molecules.

What about temperature? Assume that the number of water particles in the pot stays the same- In other words, assume that water in the pot does not evaporate. As the total kinetic energy of these water molecules increase, their average kinetic energy would also increase. As a result, it would appear that the temperature of water in that pot has increased.

7 0
4 years ago
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