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Aleks [24]
3 years ago
12

How does earth move'

Physics
1 answer:
Whitepunk [10]3 years ago
5 0
Momentum... spins on a tilted axis....
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A roller coaster uses the track in this picture. Where will the roller coaster car have the most potential energy?
kumpel [21]

Answer:

W, because that's the highest point

Explanation:

5 0
3 years ago
A rock is thrown downward from an unknown height above the ground with an initial speed of 6.1 m/s. It strikes the ground 1.7 s
insens350 [35]

Answer:

24.531 m

Explanation:

t = Time taken = 1.7 s

u = Initial velocity = 6.1 m/s

v = Final velocity

s = Displacement

g = Acceleration due to gravity = 9.81 m/s² = a

Equation of motion

s=ut+\dfrac{1}{2}at^2\\\Rightarrow s=6.1\times 1.7+\dfrac{1}{2}\times 9.8\times 1.7^2\\\Rightarrow s=24.531\ m

The initial height of the rock above the ground is 24.531 m

7 0
3 years ago
a backpack has a mass of 8 kg. it is lifted and given 54.9 J of gravitational potential energy. how high is is lifted? accelerat
dalvyx [7]
P=mgh
h=P/mg
h=(54.9)/(8*9.8)= 0.7m
8 0
3 years ago
A worker pushes horizontally on a large crate with a force of 200 N, and the crate is moved 3.5 m. How much work was done in Jou
sattari [20]

Work = (force) x (distance) =

           (200 N) x (3.5 m)  =  <em>700 joules</em>


6 0
3 years ago
How is Einstein's equation E = mc^2 used in medicine?
zlopas [31]
This equation is used in nuclear medicine. Nuclear medicine is the branch of medicine that deals with the use of radioactive substances in research, diagnosis, and treatment.
<span>
In physics, this equation is generally used in the nuclear physics. </span><span>E = mc^2 gives the energy release during a nuclear reaction.</span><span>

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8 0
3 years ago
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