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A uniform thin rod of mass M = 4.51 kg pivots about an axis through its center and perpendicular to its length. Two small bodies, each of mass m = 0.549 kg, are attached to the ends of the rod. What must the length L of the rod be so that the moment of inertia of the three-body system with respect to the described axis is I = 0.957 kg·m2?
In the figure, a square of edge length 24.0 cm is formed by four spheres of masses m1 = 5.30 g, m2 = 2.50 g, m3 = 0.500 g, and m4 = 5.30 g. In unit-vector notation, what is the net gravitational force from them on a central sphere with mass m5 = 2..
The phase angle of a series RL circuit with a 100 ohms resistor and a 20 mh inductor is 70 degrees. What is the inductive reactance of this circuit
Why do some minerals glow when illluminated with ultraviolet ("black") light? Phosphorescent materials continue to glow after the lights are turned off. Why is this? Explain in terms of a model of the atom.
A 3.00 kilogram model rocket is launched straight up. It reaches a maximum height of 1.00 x 10^2 meter above where its engine cuts out, Find what would have been this height if there were no air resistance
A rock is tossed straight up with a speed of 29 m/s. How long is the rock in the air, from the instant it is released until it hits the bottom of the hole
find the net force acting on a 2.50 c charge placed at the origin from 3 equal charges of -1.25c placed at the
Evaluate the peak electric field inside a 645 W microwave oven under the simplifying approximation that the microwave propogatesas a plane wave through the oven's 740 cm2 cross-sectional area
The output of a generator is given by v(t)=a sin(wt), where a=304V. Find the rms current in the circuit when this generator is connected to a 138 ohms resistor
You are stranded on a deserted island. You have some wire, but no magnets. You decide to use the Earth's magnetic field, the only one available to you. What area must the coil have
the magnitude of the voltage between the points labeled A and B.
An automobile having a mass of 1750 kg is placed on a hydraulic lift in a garage. The piston lifting the car is 0.235 m in diameter. What is the force exerted on the small piston
The pilot of an aircraft wishes to fly due west in a 47.7 km/h wind blowing toward the south. In what direction should the aircraft head
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