Aball is rolling across a frictionless surface when it suddenly stops.

according to newton's first law, why is the following statement incorrect?

"the ball stopped because it was not hit with a strong enough force."

a.
each object has a limited amount of inertia, no matter how much force initially causes it to move.

b.
an object stops when it has no more potential energy to convert into kinetic energy.

c.
uniform motion continues in a straight line until the object in motion is acted upon by an external unbalanced force.

d.
force is the result of mass times acceleration, so it was the acceleration that was not sufficient to keep the ball moving.

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

An charge with mass m and charge q is emitted from the origin, (x, y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.

Herman is walking his pet fish, leo , back and forth along the canal. suppose the canal is 30 meters long and he goes up and back 25 times. a) what distance has herman walked?