The rate at which work is done is equivalent to which of the following?
a. increase in potential energy
c. potential energy
b. thermal energy
d. power
D
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Under standard conditions, the density of air is 1.29 kg/m3. What is the mass of the air inside a room measuring 4.0 m × 3.0 m × 2.0 m?
A) 0.32 kg B) 3.1 kg C) 31 kg D) 1.9 kg E) 19 kg
Jupiter's interior is mostly liquid helium
a. True b. False Indicate whether the statement is true or false
While spinning down from 500 rpm to rest, a flywheel does of work. This flywheel is in the shape of a solid uniform disk of radius 1.2 m. What is the mass of this flywheel?
A) 4.0 kg B) 3.4 kg C) 4.6 kg D) 5.2 kg
A galvanometer that gives a full-scale deflection when 150 µA runs through it is used to make an ammeter that reads a maximum of 1.00 A. To do this, a 3.3-m? shunt was required. What is the resistance of just the galvanometer?
What will be an ideal response?