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As you stand on a pier looking at a harbor, the waves created by a large freighter come ashore. You estimate the wavelength to be 3.0 m and you count twelve wave peaks arriving in one minute.
(a) What is the frequency of the wave in hertz?
(b) How fast is the wave traveling?
Three 4 uF capacitors are connected in parallel across the terminals of a 120 Hz generator. What is the capacitive reactance of the circuit
Care for the coffee as though it were pure water and neglect energy exchanges with environment.
At t=0 a grinding wheel has an angular velocity of 30.0 rad/s. It has a constant angular acceleration of 31.0 rad/s^2 until a circuit breaker trips at time t = 2.00 s. From then on, it turns through an angle 428 rad as it coasts to a stop at constant..
wo converging lenses are placed 60.0 cm apart. The intial object is placed 28.7 cm in front of the first lens. what is the total linear magnification for the system
If a helium nucleus with a mass of 6.68 10-27 kg, a charge of +2e, how close will the helium atom come to the gold nucleus before it stops and turns around
Two 53 {rm g} blocks are held 30 {rm cm} above a table. One of them is just touching a 50-long spring. The blocks are released at the same time. The block on the left hits the table at accurately the same instant as the block on the right first comes..
A space probe is launched from Earth, headed for deep space. At a distance of 15,000 miles from the Earth's center, What is the size of the force when it is at 30,000 miles from the Earth's center
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 12.0 cm, giving it a charge of -15.0 microC. find the electric field: (a) just inside the paint layer, b) just outside the paint layer and c) 5..
A drawing shows three identical springs hanging from the ceiling. Nothing is attached to the first springs, determine the weight of the block hanging from the third spring
assume that for the couple in, you were told that the girl's mass was two-thirds that of the boy. The boy has a velocity of v = +0.61 m/s. What would be the girl's velocity in this case.
Would you expect to get a more accurate value for m using Equation m = h'/h in the situation where the lens is closest to the object or in the situation where the lens is furthest from the object?
Assume that the Sun radiates like an ideal thermal source at a temperature of 6000 K, What is the intensity of the solar radiation emitted in the range 550.0 nm to 552.0 nm
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