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The distance between two successive maxima of a transverse wave is 1.20m. Eight crests, or maxima, pass a given point along the direction of travel every 12.0s. calculate the wave speed.
when dealing with large quantities of something it is often convenient to define a term that refers to a certain
Two small spheres spaced 20.0 centimeters apart have equal charge. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57 x 10^-21 newtons?
A harmonic wave in a wire has amplitude 7.07 mm, wavelength 2.61 m, and frequency 254 Hz. What is the propagation speed of the wave
A 10 m beam of mass 340 kg extends over a ledge. The beam is not attached, but simply rests on the surface. How far from the edge of the ledge can the beam extend
To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 14cm in diameter and 60cm in length, What is the total length of wire you will need to meet these specifications
A helicopter is rising at 4.60 m/s when a bag of its cargo is dropped. The bag falls for 2.50 s. (suppose that the positive direction is upward.)
A stone held just beneath the surface of a swimming pool isreleased and sinks to the bottom at a constant speed of 0.48 m/s.What is the apparent speed of the stone, as viewed from directlyabove by an observer who is in air?
A lamp (R = 146 ), an electric heater (R = 24 ), and a fan (R = 49 ) are connected in parallel across a 122 V line. What is the voltage across the fan
in most projectile motion problems air resistance is neglected. this oversimplification is acceptable in only a few
A 1250 kg car is moving at 12.3 m/s. Then, 243 kJ of work is done on the car to increase its speed. What will be the car's new speed
If a 4-engine jet accelerates down the runway at 5m/s2 and 3 of the jet engines fail, how much acceleration will the other one produce.
Two 2.0 cm x 2.0 cm square electrodes, spaced 0.4 mm apart, are connected to a 10 V battery. What is the charge on each electrode
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