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A 30-lb uniform cylinder can roll without sliding on a 15°-incline. A belt is attached to the rim of the cylinder, and a spring holds the cylinder at rest in the position shown. If the center of the cylinder is moved 2 in. down the incline and released, determine
(a) the period of vibration,
(b) the maximum acceleration of the center of the cylinder.
A projectile is red with an initial speed of 65:2 m/s at an angle of 34.5 degrees above the horizontal on a long at ring range. Determine The total horizontal distance covered
A body is attached to a horizontal spring constant k = 10.0 N/m. The spring is stretched 5.0 cm and released at the initial time t = 0. Find the frequency, period and amplitude of the movement
A sprinterexplodes out of the starting block with an acceleration of+2.14 m/s2 , which she sustains for 1.26 s.Then her acceleration drops to zero for the rest of the race. Whatis her velocity at t = 1.26 s and at the end of the race?
A proton enters a uniform electric field by an initial velocity of 6x105 m/s in the x direction. The field has strength of 900 N/C, and is in the -y-direction, pointing from one plate to another as shown. If the plates are 10 cm long, how far is the ..
A wave is moving along a string. The equation giving the displacement y of a point at coordinate x and at time t has the form y = 0.2cos(4pi(x)/5-20pi(t)), Calculate the frequency and the speed(m/s) of the wave
A projectile is launched at the angle needed to maximize its range and its range is 77 meters. At what speed (magnitude of velocity) was it launched in m/s?
Starting from rest, a 94-kg firefighter slides down a fire pole.The average frictional force everted on him by the pole has amagnitude of 810 N, and his speed at the bottom of the pole is 3.9m/s. How far did he slide down the pole?
In starting an exercise, a 1.61 m tall personlifts a 2.18 kg book on the ground so it is 2.26m above the ground. What is the work done bythe person's head
An electron drops from n=3 to n=1 in this atom. What is the wavelength in nanometers of the photon emitted in the process? Planck's constant h = 6.626 x 10-34 Joule-sec, 1eV = 1.6 x 10-19 Joules
a 10,000kg open rail car rolls under a hopper at 1m/s. the hopper dispenses grain into the moving rail car, how much grain was loaded into the car
question1a charged particle is fired into a cubical region of space where there is the uniform magnetic field. outer
question a wheel centered at the origin turns through a displacement of -8.00 radians. a bug riding on the wheel rim
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