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mylen [45]
3 years ago
9

What are the three ways acceleration can occur

Physics
1 answer:
Mariana [72]3 years ago
5 0

Answer:

Change in velocity, change in direction, change in both velocity and direction

Explanation:

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As you tune your radio to a higher frequency, from 88.5 FM to 103.3 FM, the wavelength of the wave that you are tuning in
olga_2 [115]

the relation that relates the speed of wave, frequency of wave and wavelength is given as

wavelength = \frac{speed}{frequency}

the speed of wave in a medium remains constant. hence the wavelength is inversely related to the frequency of wave.

that means, as the frequency is increased, the wavelength decreases and vice versa.

hence the correct choice is

B decreases

3 0
2 years ago
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The sum of kinetic energy and potential energy within a system is called
SashulF [63]

Answer:

mechanical energy.

Explanation:

7 0
3 years ago
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During a free fall Swati was accelerating at -9.8m/s2. After 120 seconds how far did she travel? Use the formula =1/2 *
marta [7]
Distance fallen = 1/2 ( V initial + V final ) *t
We know
a = -9.8 m/s2
t=120s

To find distance fallen, we need to find V final
Use the equation
V final = V initial + a*t
Substitute known values
V final = 0 + (-9.8)(120)
V final = -1176 m/s

Then plug known values to distance fallen equation
Distance fallen = 1/2 ( 0 + 1176 )(120)
= 1/2(1776)(120)
=106,560 m

This way plugging into distance equation is actually the long way. A faster way is to plug the values into
Distance fallen = V initial * t + 1/2(a*t)
We won't need to find V final using another equation.

But anyways, good luck!



4 0
3 years ago
Which phase of the Moon occurs when Earth, the Moon, and the Sun lie on the same line?
ss7ja [257]
The answer is B I think.
3 0
3 years ago
Most of the mass of the milky way exists in the form of.
Andrews [41]

Answer: Dark matter.

Explanation: Hope it helps :)

7 0
2 years ago
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