When an atom absorbs energy, it becomes excited.
Answer the following statement true (T) or false (F)
True
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The force on the walls of a vessel of a contained gas is due to:
A. the repulsive force between gas molecules B. a slight loss in the speed of a gas molecule during a collision with the wall C. a change in momentum of a gas molecule during a collision with the wall D. elastic collisions between gas molecules E. inelastic collisions between gas molecules
A 5.0-kg object is lifted 1.1 m from the floor to a table. What is the object's gravitational potential energy relative to the floor?
An ac generator consists of 100 loops of wire, each of area 0.090 m2, and has a total resistance 12 ?. The loops rotate about a diameter in a magnetic field of 0.50 T at a constant angular speed of 60 revolutions per second
Find the maximum induced emf in the generator. A) 1.7 kV B) 0.27 kV C) 0.54 kV D) 3.4 kV
A car increases its speed from 60 to 65 miles per hour in the same time that a bicycle increases its speed from rest to 5 miles per hour. Acceleration is
1) greater for the car, 2) greater for the bicycle, 3) the same for each, principally because 4) the car undergoes the greater change in velocity. 5) the bicycle has considerably less mass. 6) both undergo equal increases in velocity during the same interval of time.