Question regarding the speed of the block
A 300 g block on a 58.0 cm-long string swings in a circle on a horizontal, frictionless table at 95.0 rpm. What is the speed of the block?
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If a material with a dielectric constant e=200 is inserted between the plates of the capacitor and it completely fills the area, what is the capacitance?
The aurora is caused when electrons and protons, moving in the earth's magnetic field of , collide with molecules of the atmosphere and cause them to glow. What is the radius of the circular orbit for (a) an electron with speed 4.0×106 and (
A charge of +18 mC is on the y axis at y=+3.0 m. A charge of -12 mC is at the origin. Find the direction of the force relative to the -x axis.
A 1kg ball released from horizontal attatched to a 2.5m string collides ellastically with a 2 kg block at rest. what is the speed of the block after the collision?
A charge of +10 mC is at (+3 m, 0m) on the x-axis and a charge of +10 mC is at (-3 m,0 m). Determine the work required to assemble this charge distribution.
Calculate the net torque about the axle of the wheel shown in Fig. 8-39. Assume that a friction torque of 0.46 m·N opposes the motion and that F = 24.
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