sadie960

22.07.2021 • 

Physics

A toy cannon uses a spring to project a 5.23-g soft rubber ball. The spring is originally compressed by 5.05 cm and has a force constant of 7.92 N/m. When the cannon is fired, the ball moves 14.2 cm through the horizontal barrel of the cannon, and the barrel exerts a constant friction force of 0.032 1 N on the ball. With what speed does the projectile leave the barrel of the cannon?
a. 2.68 m/s
b. 1.58 m/s
c. 2.40 m/s
d. 1.38 m/s

Ответ:

milo3685

09.06.2021

Physics

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the force on the charge is 1820000 N and is directed along the west.

Explanation:

Force = F =q E

q= charge= 7 C

E= electric field=260000 N/C

so F=7 (260000)

F=1820000 N

The force acting on the charge is along west.

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