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A car weighing 4580 pounds is sitting on a ramp inclined at 17.5 degrees with the horizontal. Find the force parallel and the force perpendicular to the ramp. How much force is needed to move the car up the ramp?
The heating element of a clothes dryer has a resistance of 9 ohm and is connected across a 120 Volt outlet. Find the current in the heating element
If a cell’s membrane thickness doubles but the cell stays the same size, how do the resistance and the capacitance of the cell membrane change?
A 1.44 kg monkey wrench is pivoted at oneend and allowed to swing as a physical pendulum. The period of itsmotion is 0.860 s, and the pivot is0.290 m from the center of mass of the wrench.
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.6 m radius and is 1.2 m high. The walls are 1.0 cm thick.
Find the initial speed of the ball if it just passes over the goal, 2.4 m above the ground, given the intitial direction to be 40° above the horizontal.
returns the shot with the ball traveling horizontally at 40 m/s in the opposite direction. Illustrate what is the impulse delivered to the ball by the tennis racquet?
Two long parallel wires carry currents of 3.71 A and 6.47 A. The magnitude of the force per unit lengh acting on each wire is 6.85 × 10-5 N/m
an electric-generator turbine spins at 3800 rpm. friction is so small that it takes the turbine 23.0 min to coast to a
Two skaters, one with mass of 58 kg and the other with mass 41 kg, stand on an ice rink holding a pole of length 9.5m and negligible mass. Starting from the ends of the pole, the skaters pull them selves along the pole until they meet. How far doe..
A 0.2kg rock attachedd to a horizontal springg of spring constant k=200N/m is placed on a horizontal, frictionless surface. what is the amplitude of motion for the rock
A velocity selector has an electric field of magnitude 2500 N/C,directed vertically upward, and a horizontal magnetic field that is directed south. Charged particles, traveling east at a speed of7.27 x 103 m/s, enter the velocity selector and are ..
In February 1955, aparatrooper fell 370 m from anairplane without being able to open his chute but happened to landin snow, What is the magnitude of the impulse on him from the snow
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