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marin [14]
3 years ago
12

Which statement best compares potential and kinetic energy?

Physics
2 answers:
Aloiza [94]3 years ago
7 0

Answer: Its B

Only kinetic energy increases when the velocity of an object increases.

Just took the test on Edgenity

Explanation:

borishaifa [10]3 years ago
6 0
Its the 3rd one for me
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A ball has a momentum of 35 kg·m/s. If the mass of the ball is 5.0 kg, what is the speed of the ball?
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Answer:

Simply divide the kgm/s by the 5kg

35kgm/s ÷ 5.0kg = 7m/s

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How does Solar Energy impact the environment? Use in your own words.
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Answer:

It helps to reduce polution and gasses that damage our good gases and the greenhouse gases. It produces energy from the sun. It is the cleanest way to go!

Explanation:

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Two children, Ferdinand and Isabella, are playing with a waterhose on a sunny summer day. Isabella is holding the hose in herhan
sweet [91]

Answer:

84.196%

Explanation:

g = Acceleration due to gravity = 9.81 m/s²

y_0=1\ m

x = 10 m

t = Time taken

v_0 = 3.5 m/s (assumed, as it is not given)

A_0 = \pi 1.5^2

We have the equation

y=y_0+ut+\dfrac{1}{2}gt^2\\\Rightarrow 0=y_0-\dfrac{1}{2}gt^2\\\Rightarrow t=\sqrt{\dfrac{2y_0}{g}}\\\Rightarrow t=\sqrt{\dfrac{2\times 1}{9.81}}\\\Rightarrow t=0.45152\ s

x=x_0+vt\\\Rightarrow 10=0+v0.45152\\\Rightarrow v=\dfrac{10}{0.45152}\\\Rightarrow v=22.14741\ m/s

From continuity equation we have

Av=A_0v_0\\\Rightarrow A=\dfrac{A_0v_0}{v}\\\Rightarrow A=\dfrac{\pi 1.5^2\times 3.5}{22.14741}\\\Rightarrow A=1.11706\ cm^2

Fraction is given by

f=\dfrac{A_0-A}{A_0}\times 100\\\Rightarrow f=\dfrac{\pi 1.5^2-1.11706}{\pi 1.5^2}\times 100\\\Rightarrow f=84.196\ \%

The fraction is 84.196%

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3 years ago
2. Which process is used by plants to cycle water from the ground, through the roots, and out the leaves as water vapor?
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Answer:

The answer is transpiration

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which of the following body systems has the main function of sending signals from one part of the body to the other parts of the
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Answer: Nervous system!

Explanation:

The nervous system sends and receives electrical messages all through out your entire body to instruct it on what to do or help send messages to the brain about what’s happening to that certain area.

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