The acceleration of a ball as it rolls down a ramp is 3 m/s2 . It starts from rest. (a) What is the ball's speed after 4 seconds? (b) How far does the ball travel during the 4 seconds?
Question 2
How would a compass needle align itself in the magnetic field shown in this figure?
a. It would align itself along the magnetic field lines circling the wire, with the north pole of the compass pointing clockwise.
b. It would align itself along the magnetic field lines circling the wire, with the north pole of the compass pointing counterclockwise.
c. The compass needle aligns perpendicular to the magnetic field with its north pole pointing directly at the wire.
d. The compass needle aligns perpendicular to the magnetic field with its north pole pointing directly away from the wire.
e. The direction the compass tends to point is up out of the page, but it cannot rotate that way, and it therefore does not respond to the magnetic field.
Tangential and Radial Acceleration
13 Ball
Characteristics of a Neuron at Rest and During the Different Phases of an Action Potential
A typical ball-peen hammer.
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
Giant Puff Ball