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A dipole consists of two charges of opposite sign, and each charge has a magnitude of 2.20E-18 C. They are separated by 8.00E-10 m. What is the magnitude of the torque (in newton-meters) on the dipole when it is aligned perpendicularly to an electric field of 3.10 N./C.?
If the central charge shown below is displaced 0.350 nm to the right while the other charges are held in place, find the magnitude and direction of the net force
Two lenses have focal lengths of 25.0cm and -50.0cm and are separated by 20.0cm. Where is the final image formed
A small steel wire of diameter 1.0mm is connected to an oscillator and is under a tension of 5.7N. What is the power output of the oscillator, assuming that the wave is not reflected back
A student holds a tuning fork oscillating at 201 hz. He walks towards a wall at a constant speed of 1.38 m/s. What beat frequency does he observe between the tuning fork and its echo
A spacecraft moving away from Earth emits a 4990 Hz signal. A scientist on Earth measures the signal to be 4989 Hz. What is the speed of the spacecraft relative to Earth
Just after each jumps, that person is moving away from the crate with a speed of 4.40 m/s relative to the crate.
A capacitor is made from two 1.0 cm diameter coins separated by a 0.14 mm thick piece of paper (K = 3.7). How much charge is on each coin
A 0.70-kg mass attached to a vertical spring of force constant 140N/m oscillates with a maximum speed of 0.40m/s, Find the maximum magnitude of the acceleration
A dentist's drill starts from rest. After 2.90 s of constant angular acceleration it turns at a rate of 2.2 104 rev/min. Find the drill's angular acceleration
A 70.0 kg girl lowers herself to the ground from a height of 8.8 m by holding onto a rope running over a pulley to a 54.0 kg sandbag. what is her speed when she reaches the ground
A particular guitar string is supposed to vibrate at 191- Hz, but it is measured to actually vibrate at 210- Hz. By what percent should the tension in string be changed to get the frequency to the correct value.
An engine does 17200 J of work and rejects 6470 J of heat into a cold reservoir whose temperature is 272 K
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