General Questions: You pull on a crate with a rope. If the crate moves, the rope's pull on the crate must have been larger than the crate's pull on the rope, but if the crate does not move, both of these pulls must have been equal.
A. True
B. False
Answer: B
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An RC circuit is connected across a DC voltage source through an open switch. The switch is closed at t = 0 s. Which of the following is a correct statement regarding the circuit?
A) The capacitor charges to its maximum value in one time constant. B) The capacitor charges to its maximum value in two time constants. C) The resistor and the capacitor share the applied voltage equally as a function of time. D) The current flows through the circuit even after the capacitor is fully charged. E) Once the capacitor is fully charged, there is no current in the circuit.
Viscosity: Glycerin, with a viscosity of 1.5 N ? s/m2, is flowing with an average speed of 1.2 m/s through a tube that has a radius of 5.0 mm and is 25 cm long. What is the drop in pressure over the length of this pipe?
A. 140 kPa B. 46 kPa C. 72 kPa D. 76 kPa E. 130 kPa
A small hole is cut in the bottom of a water storage tank. The initial depth of the water is 12.00 m. If the diameter of the small hole in the bottom of the tank is 4.00 mm, then what is the flow rate of the water leaving the tank?
a. 
b. 
c. 
d. 
e. 
Diverging lenses have negative focal lengths
Indicate whether the statement is true or false