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Q1. A coin is placed 12.0 {rm cm} from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on the turntable until a rate of 30.0 {rm rpm} (revolutions per minute) is reached, at which point the coin slides off. What is the coefficient of static friction between the coin and the turntable?
Q2. The power rating of the resistor is the maximum power it can safely dissipate without getting too hot. Presume you have a set of 5.37 Omega, 10.5 Omega, and 20.6 Omega resistors, all rated at 2.42 W. If you connect these 3 resistors in series across a variable emf source of negligible internal resistance, what is the largest potential difference this emf source can be set to without damaging any of resistors?
A person in a kayak starts paddling, and it accelerates from 0 to 0.8 miles/hour in a distance of 0.8 km. If the combined mass of the person and the kayak is 80 kg, what is the magnitude of the net force acting on the kayak
a parcel of land held by the partnership as an investment (basis $3,000), and equipment with a basis of $6,000. Illustrate what is her basis in the land and equipment?
A golf ball of mass 0.045 kg is hit off the tee at a speed of 32m/s. Find the average force exerted on the ball by the golf club
The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a steep ramp. determine the speed of the lighter box
A 0.181-kg ball has an elastic, head-on collision with a second ball that is initially at rest. What is the mass of the second ball
The resonant frequency of a certain series RLC circuit is 3.80 kHz, What is the value of the resonant frequency when the capacitance of the circuit is 9.20 µF
a student throws a rock with speed 20.0 m/s at 30 degrees off the edge of a cliff. how far horizontally off the edge does it hit the water
Estimate mean and maximum velocities for a liquid
How far from a point on the floor directly below the edge. Why is it a good idea to have your hand extended forward when you are getting ready to catch the fast moving baseball with your bare hand.
Equipotentials between two parallel lines with a floating circular electrode: I dont need to know the exact potentials, What should be the potential inside the electrode
Two 6.0 uC charges are placed on the x-axis at, one at x=0.0 and the other at x=1.0m. Another charge, -3.0uC is also on the x axis, what is the total electric field at position x=0.25m
Two parallel wires are 5 m long. They are seperated by a perpendicular distance of 1 cm and carry currents of 20 A, Find the interaction force between the wires
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