3 years ago

A large truck and a compct car are both driving down the

Physics

1 answer:

koban [17]3 years ago

7 0

Answer:

Explanation:

The friction force acting on the body depends on the mass of the body, here the mas of truck is very large as compared to the car, so the friction force acting on the truck is large then the car. So, the amount of heat generated by the truck is more than the car and the truck overheated more.

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A proton has been accelerated from rest through a potential difference of -1350 V. What is the proton's kinetic energy, in elect

Luba_88 [7]

Answer:

1 eV = 1.60 * 10^-19 J work done in accelerating electron thru 1 V

KE (total energy) = 1350 ^ 1 eV (note proton goes from + to -)

KE = 1.60 * 10^-19 * 1350 = 2.16 * 10^-16 Joules

1/2 m v^2 = KE = 2.16 * 10^-16 J

v^2 = 4.32 * 10E-16 / 1.67 * 10-27 = 2.59 * 10^11

v = 5.09 * 10^5 m/s

8 0

3 years ago