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3 years ago

15

What is the gravitational potential energy of a rock with the mass of 67 kg if it is sitting on top of a hill .35 kilometers hig

h?

1 answer:

solong [7]3 years ago

8 0

Not to sure but maybe 23.45

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Political scientists use political models to describe which of the following? a. political spectrum b. political shift c. politi

aniked [119]

Answer:

D

Explanation:

Political scientists use political models to describe the political climate, which is an aggregate mood or opinion of a political society at a point in time.

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3 years ago

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Consider a variety of colors of visible light (say 400 nm to 700 nm) falling onto a pair of slits.

babymother [125]

Answer:

Explanation:

The relationship between angle and wavelength for maxima and minima in Young's double slit experiment is given by

For constructive interference

$d\sin \theta =m\lambda$

For Destructive interference

$d\sin \theta =(m+\frac{1}{2})\lambda$

where $\lambda =wavelength$

$d=slit\ width$

m=order of maxima and minima

for second order maxima i.e. $m=2$

For smallest separation taking $\lambda =400 nm, \theta =90^{\circ}$

$d\sin 90=2\times 400\times 10^{-9}$

$d=0.8\times 10^{-6}$

$d=0.8\mu m$

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3 years ago

A parked car begins to roll down a hill, what can you conclude from that observation?

Fynjy0 [20]

Answer:

its The rolling friction is greater than the force of the car’s weight against the hill.

and A force was required to start the car rolling.

Explanation:

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3 years ago

You have to travel 5000 meters. You only have two minutes (120 seconds) to get there. How fast must you travel to get there in t

Sholpan [36]

Answer:

416.667 m/s

Explanation:

divide the distance by the time

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3 years ago

What type of energy does a soccer player transfer to the ball?

MrMuchimi

In soccer, the ball is potential energy. When you kick the ball, it becomes kinetic energy.

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3 years ago

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