A ping-pong ball collides with a bowling ball. Which experiences the greatest force?
A. the ping-pong ball
B. the bowling ball
C. they experience the same force
D. the force on each
E. the force on each
depends on
depends on
its velocity
its mass
C. they experience the same force (Newton’s 3rd Law)
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Buoyancy: A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. Which one has the greater buoyant force on it?
A. the aluminum B. the lead C. Both have the same buoyant force. D. It cannot be determined without knowing their volumes.
An imaginary line from one geographic pole to the other along the surface of Earth perpendicular to the equator is called
a. a longitude. b. a meridian. c. the International Date Line. d. a parallel.
Buoyancy: A solid sphere of mass 8.6 kg, made of metal whose density is 3400 kg/m3, hangs by a cord. When the sphere is immersed in a liquid of unknown density, the tension in the cord is 38 N. The density of the liquid is closest to which one of the following values?
A. 1900 kg/m3 B. 1700 kg/m3 C. 1600 kg/m3 D. 1500 kg/m3 E. 1400 kg/m3
Sunspots are ________ poles in the photosphere
Fill in the blank(s) with correct word