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2 years ago

Which of the following has potential but not kinetic energy?

Physics

2 answers:

joja [24]2 years ago

4 0

Answer:

Explanation:

Potential energy is when a object is not in motion and the ball is sitting on a shelf not being thrown around or rolling. kinetic energy is when a obeject is in motion and moving.

jeka942 years ago

4 0

Potential energy is turned into kinetic energy. Potential energy itself is determined by the position and forces on an object. Kinetic energy is based on the velocity of the object. So when an object sitting still is moved, the potential energy is quickly converted into kinetic energy because it is moving with a velocity.

A ball sitting still on a shelf will have a huge amount of potential energy because we would consider the reference point to be the ground. There is a change in height from the top of the shelf and the ground, but there is no velocity

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djyliett [7]

Answer:

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2 years ago

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2 years ago

George and Harriot walk with an average velocity of .95 m/s eastward. If it takes them 30

artcher [175]

Answer:

1.71 km

Explanation:

Convert 30 minutes to seconds:

30 min × (60 s / min) = 1800 s

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0.95 m/s × 1800 s = 1710 m

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3 years ago

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Which of the following iconic compounds forms an acid when dissolved in water

Anvisha [2.4K]

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Explanation:

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3 years ago

A satellite is launched to orbit the Earth at an altitude of 3.25 107 m for use in the Global Positioning System (GPS). Take the

Korolek [52]

Answer:Orbital period =21.22hrs

Explanation:

given that

mass of earth M = 5.97 x 10^24 kg

radius of a satellite's orbit, R= earth's radius + height of the satellite

6.38X 10^6 + 3.25 X10^7 m =3.89 X 10^7m

Speed of satellite, v= $\sqrt GM/R$

where G = 6.673 x 10-11 N m2/kg2

V= \sqrt (6.673x10^-11 x 5.97x10^ 24)/(3.89 X 10^ 7m)

V =10,241082.2

v= 3,200.2m/s

a) Orbital period

$\sqrt GM/R$ = $\frac{2\pi r}{T}$

V= $\frac{2\pi r}{T}$

T= 2 $\pi$ r/ V

= 2 X 3.142 X 3.89 X 10^7m/ 3,200.2m/s

=76,385.1 s

60 sec= 1min

60mins = 1hr

76,385.1s =hr

76,385.1/3600=21.22hrs

3 0

3 years ago