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Ocean waves pass through two small openings, 21 m apart, in a breakwater. You're in a boat 76 m from the breakwater and initially midway between the openings, but the water is pretty rough. You row 40 m parallel to the breakwater and, for the second time, find yourself in relatively calm water.
What is the wavelength of the ocean waves?
An airplane needs to reach a velocity of 487 km/h to take off. On a 2000 m runway, what is the least acceleration necessary for the plane to take flight.
A 5 kg ball collides head-on with a 10 kg ball, which is initially stationary. The collision is inelastic. Which statement is true?
A uniformly accelerated car passes three equally spaced traffic signs. The signs are separated by a distance d = 21 m. obtain the magnitude of the acceleration of the car
A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, What is the weight of the truck
Two loudspeakers are vibrating in phase. They are set up as point C is located. Assume the speed of sound is 342 m/s. The speakers play the same tone. What is the smallest frequency that would produce destructive interference at point C.
A freezer of resistance 14.5ohms is connected to a 110V source. What is the power delivered when this freezer is on
Two parallel wires of length 17 m are separated by a distance of a = 0.13 cm, What is the magnetic force on each wire
A gymnast with mass m1 = 42 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 106 kg and length L = 5 m. Each support is 1/3 of the way from each end. at first the gymnast stands at the left end of..
A plano convex lens of focal length 16 cm is fixed on the side of the box with convex surface outside an object is placed at 26 cm from the lens find the position of the image while (1) the box is empty (2) field with water.
A certain superconducting magnet in the form of a solenoid of length 0.520 m can generate a magnetic field of 9.10 T in its core when its coils carry a current of 80 A
1) What is the density of water vapor in g/m3 on a hot dry day in the desert when the temperature is 40.0°C and the relative humidity is 16.0%?
q1. cannon at the top of a 147 m high cliff fires at a pirate ship. the cannonball has an initial velocity of 114 ms at
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