Joe and Bill throw identical balls vertically upward. Joe throws his ball with an initial speed twice as high as Bill. If there is no air resistance, the maximum height of Joe's ball will be
A) four times that of Bill's ball.
B) two times that of Bill's ball.
C) equal to that of Bill's ball.
D) eight times that of Bill's ball.
E) roughly 1.4 times that of Bill's ball.
Question 2
Monochromatic light is incident on a metal surface and electrons are ejected. If the intensity of the light is increased, what will happen to the ejection rate and maximum energy of the electrons?
A) Greater rate; same maximum energy.
B) Same rate; greater maximum energy.
C) Greater rate; greater maximum energy.
D) Same rate; same maximum energy.
Bill Viola. Room for St. John of the Cross. 1983.
Bill Viola, Sketch for the set of The Greeting.
Put two tennis balls in a sock, then tie a knot in the end of the sock to hold the balls together.
A typical ball-peen hammer.
A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ...
Allyl isothiocyanate, ball and stick model