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A wave of amplitude 0.30 m interferes with a second wave of amplitude 0.20 m. What are the (a) largest and (b) smallest absolute values of the resultant displacement that can occur, and under what conditions will these maxima and minima occur?
A train is moving parallel and adjacent to a highway with a constant speed of 23 m/s. Initially a car is 57 m behind the train, What is the speed of the car just as it passes the train
A 380 kg piano slides 3.9 m down a 27 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Determine the work done by the man on the piano
A grandfather pendulum has a simple brass rod of length L. The temperature in the house quickly drops to 16.0 oC just after 10PM, and stays at that value. By how much does the length of the pendulum change
As we've seen, astronauts measure their mass by measuring the period of oscillation when sitting in a chair connected to a spring. What is the mass of an astronaut who oscillates with a period of 2.25 when sitting in the chair
An electric motor rotating a workshop grinding wheel at a rate of 93 rev/min is switched off. Assume the wheel has the constant negative angular acceleration of magnitude 2rad/s2.
A light bulb is placed 22.3 cm in front of a concave mirror. Calculate the focal length of the concave mirror
At a temperature of 1.66 °C, the mass and volume of a fluid are 798 kg and 1.20 m3. The coefficient of volume expansion is 1.58 x 10-3 (C°)-1. What is the density of the fluid at this temperature
The radius of a park merry-go-round is 2.4 m. To start it rotating, you wrap a rope around it and pull with a force of 260 N for 11 s. What is the moment of inertia of the merry-go-round
A shell is shot with an initial velocity of 17 m/s, at an angle of ?0 = 60° with the horizontal. How far from the gun does the other fragment land
Inside a computer mouse, a delicate spring (k = 8.5 N/m) deflects a distance of 3 mm. How much force is required to cause this deflection
A piano tuner stretches a steel piano wire with a tension of 1040N . The wire is 0.400m long and has a mass of 3.90g. What is the frequency of its fundamental mode of vibration
7.03 g of phosphorus reacts with bromine to form 61.39g of phosphorus tribromide, How many grams of bromine reacted in this reaction
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