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A small 12 gram bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction. The bar has mass 55 gram and is 100 centimeter in length. The bug jumps off in the horizontal direction, perpendicular to the bar, with a speed of 15 cm/s relative to the table.
Find the angular speed of bar after frisky insect leaps?
A 1 pF capacitor is connected in parallel with a 2 pF capacitor, the parallel combination then being connected in series with a 3 pF capacitor. Which capacitor has the greatest charge
An oscillating LC circuit has a current amplitude of 7.10 mA, a potential amplitude of 250 mV, and a capacitance of 200 nF. What is the maximum energy stored in the capacitor
a proton with an initial speed of 800000 ms is brought to rest by an electric field.a what was the potential difference
A particle of velocity v and mass 6.40 x 10^-25 kg has a wavelength of 20.7 fm. Its kinetic energy is the same as the energy of a photon of wavelength \theta. Find \theta.
A student in a parked car honks the horn, which has a `proper' frequency of 310 Hz. Calculate the speed of the approaching vehicle
A series RC circuit, which is made from a battery, a switch, a resistor, and a 3.0-µF capacitor, has a time constant of 9.0 ms. what is the resulting time constant
cientists want to place a 2700.0 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 2.4 times the radius of Mars above the surface of the planet. What should the radius of the orbit be
For two stars of the same surface temperature, how does their relative luminosity depend on their radii
A high-speed railway car goes around a flat, horizontal circle of radius 480 meter at a constant speed. Compute the speed of the railway car
An electron of mass m leaves one end of a TV picturetube with zero initial velocity and travels in a straight line toan accelerating grid, Find the time to reach the grid
Typically, a tennis ball hit during a serve travels away at about 47 m/s. what is the magnitude of the change in its momentum (in kg*m/s) on leaving the racket
A particle is acted on by two torques about the origin: τ1 has magnitude 6 N m and points in the direction of increasing x, and τ2 has magnitude of 4 N m and points in the direction of decreasing y.
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