2 years ago

Will mark brainliest. TRUE OR FALSE. the acceleration due to gravity is caused by a field force

Physics

1 answer:

choli [55]2 years ago

5 0

Answer:

Yes, It is true.

The acceleration due to gravity is caused by field force.

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A gamma ray photon has an energy of 0.91 GeV. (1 GeV = 109 eV.) What is the wavelength of the gamma ray in fm? (1 fm = 10-15 m)?

anastassius [24]

Answer:

$\lambda=1.37 fm$

Explanation:

The Planck Eistein relation, states that the energy of a photon is proportional to its frequency:

$E=h\nu(1)$

h is the Plank constant.The frequency of a photon is defined as the speed of light over its wavelength:

$\nu=\frac{c}{\lambda}(2)$

Replacing (2) in (1):

$E=\frac{hc}{\lambda}\\\lambda=\frac{hc}{E}\\\lambda=\frac{(4.14*10^{-15}eV\cdot s)(3*10^8\frac{m}{s})}{0.91*10^{9}eV}\\\\\lambda=(1.37*10^{-15}m)*\frac{1fm}{10^{-15}m}\\\\\lambda=1.37 fm$

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3 years ago

A bullet with a mass of 0.020 kg collides with a 2.5 kg wooden block at

kondaur [170]

Answer:

151.2 m/s

Explanation:

m1 = 0.020 kg

m2 = 2.5 kg

vf = 1.2 m/s

m1v1 +m2v2 = (m1 +m2)vf

0.020v1 + 0 = (0.020 +2.5)(1.2)

---> 151.2 m/s

5 0

3 years ago

When liquid water gets into cracks of rock and freezes, it __ and ___.

hoa [83]

It expands and pushes the crack further aprt

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2 years ago

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How many kilograms are there in a 2.00 L bottle of drinking water?

nasty-shy [4]

There are 2 kilograms of water in 2 liters of water. if you convert the amount of water to kilograms it equals 2

6 0

3 years ago

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The movement of thermal energy from a warmer object to a cooler object is called a. heat. b. temperature. c. motion. d. momentum

Ann [662]

Answer:

heat

Explanation:

because heat the other of transferring energy

4 0

3 years ago