Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and one mass slides on a 30.0 degrees frictionless incline. The vertically hanging mass is 3.00 kg and the mass on the incline is 6.00 kg. The acceleration of the 3.00 kg mass is (the initial velocity is zero)
A. 7.48 
B. 6.72
C. 2.98
D. 1.03
E. 0.00
E. 0.00
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What is the global positioning system (GPS)?
A) a system for determining positions on the Earth by careful observations of the Sun and stars B) a system of determining positions on the Earth by receiving radio signals from many ground-based beacons C) a system for determining positions on Earth using signals from a set of satellites in Earth orbit D) a term used to refer to any type of celestial navigation
Our Sun will first become a red giant, then a white dwarf, and finally a brown dwarf
Indicate whether the statement is true or false
The graphs below show the phasors ?Vmax and Imax for five RLC series circuits. The solid arrows represent the voltage phasors, ?V, and the dashed arrows represent the current phasors, Imax. Which graph represents a circuit where the capacitive reactance is greater than the inductive reactance?
a.
b.
c.
A fully charged parallel-plate capacitor remains connected to a battery while you slide a dielectric between the plates. What happens to the value of the energy stored in the capacitor?
1.It increases. 2.It decreases. 3.It stays the same.