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A fisherman notices that wave crests pass the bow of his anchored boat every 2.84 second. He measures the distance between two crests to be 6.26 meter. Determine how fast are the waves traveling?
A copper wire is 9.00 m long and has a cross-sectional area of 2.00 10-4 m2. what is the maximum torque that can act on it
the 2lb block is given an initial velocity of 20fts when when it is at a. if the spring has an unstretched length of
A VW Beetle goes from 0 to 102 mi/h with an acceleration of +6.59 m/s2. A top-fuel dragster can go from 0 to 102 mi/h in 1.52 s. What is the acceleration (in m/s2) of the dragster
A 50g marble moving at 2.2m/s strikes a 30g marble at rest. Assume the collision is perfectly elastic and the marbles collide head-on. What is the speed of the first marble
An asteroid of mass 1.00 x 10^9 kg comes from deep space and fallstoward Earth. Assume the asteroid started the fall from rest very far from Earth, and find the change in potential energy when it reaches a point 4.00 x10(8) m from Earth (that's jus..
A laser is mounted in air, m above the edge of a large, horizontalpane of crown glass (n = 1.520), as shown in the drawing. The laser is aimed at the glass in such a way that thereflected beam is 100% polarized.
A bird flies 3.6km due west and then flies 1.2km due north, What is the angle between the net displacement vectors of the 2 birds
Find the speed of the waves on an 800.0 mg violin string 21.7-cm long if the fundamental frequency is 912.0 Hz. find the wavelength of the sound waves emitted by the string
A saw blade goes from rest to 3500 rpm in 3.0s. Through how many radians does the blade turn while reaching 3500 rpm
a charge of -5.9 micro-coulombs is placed at x 0 y 0. a charge of -17.9 micro-coulombs is placed at x 0 y 36 cm.
When a block slides across a floor, what is the direction of the frictional force acting on the block from the floor? in the direction of the sliding. opposite the direction of the sliding
A cylinder of mass 6.6 kg and radius 0.10 m rolls along a level floor. Its center of mass has a speed of 0.8 m/s. Find the kinetic energy of rotation
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