Consider a situation where a skater pulls her arms inward, causing her rotation rate to speed up.Linear momentum
a. is definitely conserved.
b. is definitely not conserved.
c. may or may not be conserved.
d. none of the above
a
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An adiabatic process for an ideal gas is represented on a p-V diagram by:
A. a horizontal line B. a vertical line C. a hyperbola D. a circle E. none of these
A neutral atom always contains
a. the same number of protons as it does neutrons. b. the same number of electrons as it does neutrons. c. the same number of protons as it does electrons. d. twice as many protons as it does neutrons. e. twice as many neutrons as it does protons.
If there is a net torque on a wheel, then
A. the wheel cannot be spinning. B. the angular momentum of the wheel cannot change direction. C. there must be a net force on the wheel. D. the wheel must have a nonzero angular acceleration.
Addition by 1. Components: The figure shows three vectors, src="https://sciemce.com/media/4/ppg__cp1pbb0313192044__f15g1q36g6.jpg" style="vertical-align: -5.0px;" />.
, 
, and 
, along with their magnitudes. Determine the magnitude and direction of the vector given by 
+ 
- 
Fill in the blank(s) with the appropriate word(s).