The average density of Earth is ________.
A. about 1 g/cm3
B. about 1 cm3/g
C. about 5.5 g/cm3
D. about 5.5 cm3/g
Answer: C
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The maximum mass of a white dwarf is ____________________ solar masses
Fill in the blank(s) with correct word
Pressure in a Liquid: A container has a vertical tube, whose inner radius is 20.00 mm, connected to it at its side, as shown in the figure. An unknown liquid reaches level A in the container and level B in the tube-level A being 5.0 cm higher than level B. The liquid supports a 20-cm high column of oil, between levels B and C, whose density is 900 kg/m3. The density of the unknown liquid is closest to
A. 3600 kg/m3. B. 3900 kg/m3. C. 2800 kg/m3. D. 3100 kg/m3. E. 3300 kg/m3.
When a car goes around a banked circular curve at the proper speed for the banking angle, what force cause it to follow the circular path?
A) the normal force exerted by the road on the car perpendicular to the road's surface B) the friction force exerted by the road on the car C) the force that Earth exerts on the car D) No force causes the car to do this because the car is traveling at constant speed and therefore has no acceleration.
What is the quantity used to measure an object's resistance to changes in rotational motion?
A) mass B) moment of inertia C) torque D) angular velocity E) angular acceleration