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Vlada [557]
3 years ago
12

Which refers to any disturbance that carries energy from one place to another through matter and space?

Physics
2 answers:
Black_prince [1.1K]3 years ago
4 0
I think frequency it sounds like the correct answer but I am not completely sure if I am correct
Cloud [144]3 years ago
4 0

Answer:

A wave

Explanation:

A wave is a disturbance which carries energy from one place to another.

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John bounces a ball off the ground, and it leaves the ground with a velocity of 10 m/s. How long will it take the ball to reach
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magine two carts, one with twice the mass of the other, that are going to have a head-on collision. In order for the two carts t
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Answer:

Twice as fast

Explanation:

Solution:-

- The mass of less massive cart = m

- The mass of Massive cart = 2m

- The velocity of less massive cart = u

- The velocity of massive cart = v

- We will consider the system of two carts to be isolated and there is no external applied force on the system. This conditions validates the conservation of linear momentum to be applied on the isolated system.

- Each cart with its respective velocity are directed at each other. And meet up with head on collision and comes to rest immediately after the collision.

- The conservation of linear momentum states that the momentum of the system before ( P_i ) and after the collision ( P_f ) remains the same.

                             P_i = P_f

- Since the carts comes to a stop after collision then the linear momentum after the collision ( P_f = 0 ). Therefore, we have:

                             P_i = P_f = 0

- The linear momentum of a particle ( cart ) is the product of its mass and velocity as follows:

                             m*u - 2*m*v = 0

Where,

                 ( u ) and ( v ) are opposing velocity vectors in 1-dimension.

- Evaluate the velcoity ( u ) of the less massive cart in terms of the speed ( v ) of more massive cart as follows:

                          m*u = 2*m*v

                              u = 2*v

Answer: The velocity of less massive cart must be twice the speed of more massive cart for the system conditions to hold true i.e ( they both come to a stop after collision ).

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