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3 years ago

9

A 20-ton truck collides with a 1500-lb car and causes a lot of damage to the car. During the collision:

1 answer:

dexar [7]3 years ago

6 0

Answer:

B. the force of on the truck due to the collision is exactly equal to the force on the car.

Explanation:

At the time of collision between two objects of unequal or equal masses two forces emerge at the point of collision .They are called action and reaction force . According to third law of Newton , they are equal . So in the instant case of collision between car and truck , force on both of them will be equal.

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What are two ways electromagnetic waves are used in a home computer scanner?

miss Akunina [59]

Answer:

A and B

Explanation:

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An initially uncharged 3.47-μF capacitor and a 6.43-kΩ resistor are connected in series to a 1.50-V battery that has negligible

harkovskaia [24]

Answer: a) io=233.28 A ( initial current); b) τ=R*C= 22.31 ms; c) 81.7 ms

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I(t)=io*Exp(-t/τ)

and also we consider that io=V/R=(1.5/6.43*10^3)

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Finally the time to reduce the current to 2.57% of its initial value is obtained from:

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ln(0.0257)*τ =-t

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3 years ago

Why can beta particles pass through materials more easily than alpha particles? (2 points)

never [62]

Beta particles are smaller

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bixtya [17]

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You push very hard on a heavy desk, trying to move it. You do work on the desk:

frozen [14]

Answer:

(C) Only if it starts moving

Explanation:

We know that work done is given by

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And other case is that when there is no displacement

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3 years ago