Ball A is dropped from rest as ball B is shot out horizontally. Ball A hits the ground
1) before ball B.
2) after ball B.
3) at the same time as ball B.
This is because
4) ball A has less distance to travel.
5) ball B is acted upon by an additional force.
6) both balls fall the same vertical distance with the same acceleration.
Answer: 3, 6
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Which of the following statements best describes the size of the largest asteroid, Ceres?
A) It is about the size of a terrestrial planet. B) It is smaller than the jovian planets but larger than the terrestrial planets. C) It is a little less than half the diameter of our Moon. D) It is no larger than a typical mountain on one of the terrestrial planets.
Exhibit 5-1
A 2.30-kg mass is suspended from the ceiling and a 1.70-kg mass is suspended from the 2.30-kg mass, as shown. The tensions in the strings are labeled 
and 
.
?
?
Use this exhibit to answer the following question(s).
Refer to . A hand exerts an upward force of 6.70 N on the 1.70-kg mass. The magnitudes of the tensions are
A.
= 15.8 N; 
= 10.0 N.B.
= 15.8 N; = 16.7 N.C.
= 22.5 N; = 10.0 N.D.
= 22.5 N; = 16.7 N.E.
= 32.5 N; = 10.0 N.The magnetic force between parallel wires is used by the National Bureau of Standards to define the
A) Newton. B) Tesla. C) square-meter. D) Ampere. E) Coulomb.
When an electron in an atom moves from a lower energy level to a higher one, a ______________ is ______________
a. photon; emitted b. proton; emitted c. photon; absorbed d. proton; absorbed