Momentum is conserved only when there is no friction
a. True
b. False
Indicate whether the statement is true or false
False
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Meters: A galvanometer has an internal resistance of 100 ? and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a millivoltmeter capable of reading up to 400 mV?
A. 50.0 ? in series B. 50.0 ? in parallel C. 100 ? in series D. 100 ? in parallel
Copernicus
A) provided strong observational evidence that the Earth moved about the Sun B) proved that the orbital shapes of the planets were ellipses and not circles C) was the first person to suggest the Earth moved around the Sun D) revived Aristarchus's suggestion of a Sun-centered solar system and described it mathematically
Climate models which ignore human activity
A) completely fail to match real climate data B) match real climate data quite well C) match real climate data perfectly D) match real climate data, but only poorly
The direction of propagation of electromagnetic waves is given by the
A) right hand rule. B) left hand rule. C) right and left hand rules. D) None of the other answers given is correct.