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A 0.50 kg mass is attached to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. At what location are the potential energy and kinetic energy the same?
A boy whirls a ball on a string in a horizontal circle of radius 0.8 meter, such that the centripetal acceleration is equal to g. Calculate the frequency of the ball in revolutions per minute
Light is refracted through diamond from air. If the angle of incidence is 30 °, what is the speed of light in diamond
A 4.3kg fishbowl sits on a smooth level table, with a coefficient of static friction between the bowl and the table vs=.17. if you wish to push the bowl sideways (applying force parallel to the tabletop) how much force do you have to apply to caus..
A square coil of wire of side 3.00 cm is placed in a uniform magnetic field of magnitude 2.50 T directed into the page as in the figure shown below. The coil has 24.0 turns and a resistance of 0.780 O. If the coil is rotated through an angle of 90..
around the core of a nuclear reactor shielded by a large pool of water cerenkov radiation appears as a blue glow.
assume the roller coaster (h1 = 37 m, h2 = 13 m, h3 = 30) passes point A with a speed of 3.10 m/s. If the average force of friction is equal to one third of its weight, with what speed will it reach point B? The distance traveled is 55.0 m.
A textbook of mass 2.09kg rests on a frictionless, horizontal surface. What is the moment of inertia of the pulley about its rotation axis
A sign weighing 498 N is suspended at the end of a uniform rod 4.04 m long weighing 663 N as shown below. What is the tension in the support cable
we have a tuning fork with a frequency f resonating in a cavity with an open top of width 2.54cm and a length of 20.4cm at 20 degrees celsius and one atm
A large circus ride has a centripetal acceleration at 6.0 m/s2. If the circular ride has a radius of 11.0 m, what is its velocity at the edge
Logan is given an initial speed of 4.00 m/s down a 20 %u030A incline. when he reaches the bottom of the incline
A ranger in a national park is driving at 32.0 mi/h when a deer jumps into the road 200 ft ahead of the vehicle. What is the maximum reaction time allowed
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