3 years ago

A lorry pulls forward after initially being stationary, it takes the lorry 80m to reach a speed of

Physics

1 answer:

____ [38]3 years ago

6 0

Answer:

a=f/m

Explanation:

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Reaction rates are affected by reactant concentrations and temperature. this is accounted for by the ________.

Black_prince [1.1K]

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Reaction rates are affected by reactant concentrations and temperature. this is accounted for by the c</span>ollision model.

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3 years ago

A bullet with an initial kinetic energy of 400 J strikes a wooden block where a 8000 N resistive force stops the bullet. What is

Sindrei [870]

Answer:

d = 0.05 [m] = 50 [mm]

Explanation:

We must remember the principle of conservation of energy which tells us that energy is transformed from one way to another. For this case, the initial kinetic energy is transformed into useful work that is equal to the product of force by distance.

$E_{k}=F*d\\400 = 8000*d\\d = 0.05 [m] = 50 [mm]$