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kari74 [83]
3 years ago
9

According to recent research, ice skaters are able to glide smoothly across the ice because _____.

Physics
1 answer:
nekit [7.7K]3 years ago
8 0
In the blank should go of friction.
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View this and help out??
Zina [86]
I would say b as well. I’m sorry if it’s wrong
5 0
3 years ago
8th grade science question on forces, please help me im soooo close and i dont understand this one :)
marin [14]

Answer: The dog is pull the stick away from the boys hand

the boy is also pulling if the boy lets go of the stick the dog will fall due to law of action and reaction

The man is pushing the horse cart up the hill to do so he has to apply force

Explanation:

7 0
3 years ago
Read 2 more answers
A supply bag is dropped from a rescue plane. After the bag falls for 3.2 seconds , what is the velocity of the bag?
loris [4]

Answer: -31.36 m/s

Explanation:

This is a problem of motion in one direction (specifically vertical motion), and the equation that best fulfills this approach is:

V_{f}=V_{o}+a.t  (1)

Where:

V_{f} is the final velocity of the supply bag

V_{o}=0 is the initial velocity of the supply bag (we know it is zero because we are told it was "dropped", this means it goes to ground in free fall)

a=g=-9.8m/s^{2} is the acceleration due gravity (the negtive sign indicates the gravity is downwards, in the direction of the center of the Earth)

t=3.2s is the time

Knowing this, let's solve (1):

V_{f}=0+(-9.8m/s^{2})(3.2s)  (2)

Finally:

V_{f}=-31.36m/s  Note the negative sign is because the direction of the bag is downwards as well.

8 0
3 years ago
A system absorbed 44 joules of heat from its surroundings. After doing work, the increase in the internal energy of the system i
Lunna [17]
Idk sorry maybe try @amyletbe
6 0
3 years ago
Read 2 more answers
A proton is moving toward a second, stationary proton. What happens as the protons get closer?
MatroZZZ [7]

Answer:

A. Kinetic energy is converted to electric potential energy, and the proton moves more slowly.

Explanation:

When a moving proton is brought close to a stationary one, the kinetic energy of the moving one is converted to electric potential  and the proton moves more slowly.

Kinetic energy is the energy due to the motion of a body. A moving proton will possess this form of energy.

Two protons according to coulombs law will repel each other with an electrostatic force because they both have similar charges. This will increase their electric potential energy of both of them.

Potential energy is the energy at rest of a body. As it increases, the motion of a body will be slower and it will tend towards being stationary.

5 0
3 years ago
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