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ehidna [41]
3 years ago
9

A skier halfway between the top and bottom of a hill. Which statement best describes the skier?

Physics
1 answer:
Dvinal [7]3 years ago
5 0

Answer: The skier has potential and kinetic energy.

Explanation: This is what I found from a different user on this website

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Which energy conversion takes place when a solar cell is used to light a street lamp?
professor190 [17]

Answer:

SOLAR TO LIGHT ENERGY

Explanation:

4 0
3 years ago
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A woman weighs 129 lb. If she is standing on a spring scale in an elevator that is traveling downward, but slowing up, the scale
Lena [83]

Answer:

C) less than 129 lb.

Explanation:

Let the elevator be slowing up with magnitude of a . That means it is accelerating downwards  with magnitude a .

If R be the reaction force

For the elevator is going downwards with acceleration a

mg - R = ma

R = mg - ma

R measures its apparent weight . Spring scale will measure his apparent weight.

So its apparent weight is less than 129 lb .

5 0
3 years ago
Air only has a density of 1.3kg/m². What is the mass of<br>3m^3 of air?​
Katarina [22]

Answer:

m = 3.9 [m³]

Explanation:

We must remember that the density of the substance is defined as the relationship between mass over volume. That is expressed in the following equation:

Ro = m/V

where:

Ro = density = 1.3 [kg/m³]

m = mass [kg]

V = volume = 3 [m³]

Now replacing the values.

m =Ro*V\\m = 1.3*3\\\\m=3.9[m^{3}]

8 0
3 years ago
Which of the following would result in the greatest gravitational force between the two objects?
cupoosta [38]

Answer:

i think b

Explanation:because they are so close

4 0
3 years ago
The driver of a car traveling at 21 m/s applies the brakes and decelerates at the rate of -3.8 m/s. (a) How long does it
ANEK [815]

Answer:

105/19

Explanation:

it may exppressed in negative if the velocity is not negative

6 0
3 years ago
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