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timama [110]
3 years ago
9

Describe what happens to the speed of a bicycle as it goes uphill and downhill.

Physics
1 answer:
Elenna [48]3 years ago
7 0
Describe what happens to the speed of a bicycle as it goes downhill
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According to Newton's third law of motion, if you push against a wall, the wall will __________.
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push up agaisnt you with equal force.

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The frequency of a microwave is 1.2 x 10^9 hertz. what is the wavelength of the given problem.
Olenka [21]

Answer:

0.25 m

Explanation:

Electromagnetic waves consist of oscillations of the electric and the magnetic field, oscillating in a plane perpendicular to the direction of motion the wave.

All electromagnetic waves travel in a vacuum always at the same speed, the speed of light, whose value is:

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Microwave is an example of electromagnetic waves.

The relationship between wavelength and frequency for an electromagnetic wave is:

\lambda=\frac{c}{f}

where

\lambda is the wavelength

c=3.0\cdot 10^8 m/s  is the speed of light

f is the frequency

For the microwave in this problem,

f=1.2\cdot 10^9 Hz

So its wavelength is

\lambda=\frac{3.0\cdot 10^8}{1.2\cdot 10^9}=0.25 m

7 0
3 years ago
What does an unconformity in a sequence of rock layers reveal about geologic history?
andreev551 [17]
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The center of the Hubble space telescope is 6940 km from Earth’s center. If the gravitational force between Earth and the telesc
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The gravitational force between two objects is given by:
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where
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3 years ago
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