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When four people by a combined mass of 270 kg sit down in a car, they discover that the car drops 1.00 cm lower on its springs. Then they obtain out of the car and bounce it up and down. What is the frequency of the car's vibration if its mass (when it is empty) is 2.0 multiplied by 103 kg?
Find the distance in (μm) between the plates of a parallel plate capacitor if, in the dielectric completely filling that region, an electric field of magnitude 67.5 MV/m gives a potential difference of 34.5 kV between the plates.
You want to shoot a 19cm long arrow parallel to this axle and through the wheel without hitting any of spokes. Suppose that the arrow and the spokes are very thin.
A 10.0-kg mass is placed on a 25.0o degree incline and friction keeps it from sliding. What is the frictional force while the mass is sliding
A hopper drops gravel at a rate of 75kg/s onto a belt that moves by constant velocity v=2.2m/s. What is the additional force (over and above internal friction) required to keep the conveyor belt moving as gravel falls onto it?
An iron bar 40 cm long is braised to a copper bar 50 cm long and of the same diameter. What is the heat flow down the rod if its cross-sectional area is 2.50 cm2
a) Use conservative of energy to find the car's speed at the top of the loop and at the bottom of the loop. b) what is the centripetal acceleration ar=V^2/r at the top of the loop and bottom of the loop
A light ray in air is incident on a water surface at an angle of 27.7? with respect to the normal to the surface. What is the angle of the refracted ray relative to this normal
A clown at a birthday party has brought along a helium cylinder,with which he intends to fill balloons. What is the maximum number of balloons that can be filled
A point charge q1 = -2.3 x 10^ -6 C is located at the origin of a co-ordinate system. Another point charge q2 = 6.3 x 10^-6 C is located along the x-axis at a distance x2 = 6.1 cm from q1. 1) What is F12,x, the value of the x-component of the forc..
An ion with charge q is distance r from a molecule with polarizability (alpha). Find an expression for the magnitude force F
Suppose the skateboarder shown in the drawing reaches a height of2.30 m above the right side of the semicircular ramp. He then makesan incomplete midair turn and ends up sliding down the right sideof the ramp on his back. When the skateboarder rea..
Jupiter is 23.10 m/s2. What is the ratio of your speed on Jupiter to your speed on Earth when you have dropped 45.0 m? Overlook the effects of air resistance and suppose that you start at rest.
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