Two parallel plates of area 7.34 x 10-4 m2 have 5.83 x 10-8 C of charge placed on
them. A 6.62 x 10-6 C charge qy is placed
between the plates. What is the magnitude of
the electric force on 91?
Hint: How is force related to the field?
(Unit = N)

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •