Two identical 7-kg bowling balls roll toward each other. The one on the left is moving at +4 m/s while the one on the right is moving at -4 m/s. What is the velocity of each ball after they collide elastically?
a. Neither is moving.
c. +4 m/s, -4 m/s
b. -14 m/s, 14 m/s
d. -4 m/s, +4 m/s
Question 2
If a negative charge is placed inside a hollow isolated conductor that is originally neutral and the charge does not touch that conductor at any time:
a. both the inner and outer surfaces will become negative.
b. both the inner and outer surfaces will remain neutral.
c. the outside surface of the conductor will become positively charged. d. the inside surface of the conductor will become positively charged.
(A) The name and shape of the adult teeth. These teeth represent those found in the right side of th
Heart Failure Left side
Many ideologies stem from older theories. The ideas of the philosophers are simplified. Ideologies
The cross-linking reaction in peptidoglycan synthesis (left) and inhibition of the transpeptidase
A land snail (Helix aspersa) with the opening that leads to its lung visible at the left.
1.6 Organisms are made up of cells, each of which contains an identical set of genes.