A body whose velocity increases by a constant amount each second is exhibiting motion for which the ________ is constant.
What will be an ideal response?
acceleration
change in velocity
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A. 0.88 m B. 8.0 m C. 12 m D. 17 m E. 4.0 m
Buoyancy: A person who weighs 550 N empties her lungs as much as possible and is then completely immersed in water of density 1000 kg/m3 while suspended from a harness. Her apparent weight is now 21.2 N. What is her density?
A. 1050 kg/m3 B. 1040 kg/m3 C. 1030 kg/m3 D. 960 kg/m3 E. 56.1 kg/m3
An organ pipe open at both ends has a length of 0.80 m. If the velocity of sound in air is what is the frequency of the second harmonic of this pipe?
A) 638 Hz B) 425 Hz C) 213 Hz D) 850 Hz
The size of the electric current in a electrical conductor is a function of which of the following?
a. conductor cross sectional area c. density of charge carriers b. velocity of charge carriers d. All of these choices are valid.