Changes that do not alter the chemical composition of a substance are called ______________ changes
Fill in the blank(s) with correct word
physical
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A monkey hangs on a rope. What forces act on the monkey? (Ignore forces due to the air.)
1.Friction, Gravitation 2.Tension, Gravitation 3.Friction, Tension, Gravitation 4.Normal, Friction, Gravitation 5.More than one answer is true 6.None of the above 7.Cannot be determined
Two long parallel wires separated by 5.0 mm each carry a current of 60 A. These two currents are oppositely directed. What is the magnitude of the magnetic field at a point that is between the two wires and 2.0 mm from one of the two wires?
a. 2.0 mT b. 10 mT c. 8.0 mT d. 1.6 mT e. 7.2 mT
A centrifuge has a rotational inertia of 
How much energy must be supplied to bring it from rest to 500 rad/s?
A. 627 J B. 570 J C. 688 J D. 743 J E. 583 J
A constant volume closed container of gas is at a pressure 1.00 × 105 N/m2 and a temperature 20°C. What is the pressure if the temperature of the gas is increased to 60.0°C?
A) 0.330 × 105 N/m2 B) 9.00 × 105 N/m2 C) 0.880 × 105 N/m2 D) 3.00 × 105 N/m2 E) 1.14 × 105 N/m2