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A rotating fan completes 1200 revolutions every minute. Consider a point on the tip of a blade, at a radius of .20 m.a) Through what distance does the point move in one revolution?b) What is the speed of the point?c) What is the magnitude of its acceleration?d) What is the period of the motion?
mall candle is 37cm from a concave mirror having a radius of curvature of 22cm. What is the focal length of the mirror? Follow the sign conventions
A 550 N physics student stands on a bathroom scale in an elevator. As the elevator starts moving, the scale reads 450N. (a) Find the acceleration of the elevator. Find the mass of the worker.
Suppose that charges on a dipole antenna oscillate slowly at a rate of 1 cycle/s, and the antenna radiates electromagnetic waves in a region of space. What is the period of the charge oscillation
q1. if 730 nm and 675 nm light passes throughout two slits 0.63 mm apart how far apart are the second-order fringes for
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. What is the angular acceleration in the second training exercise
The position of an object connected to a spring varies with time according to the expression x = (5.9 cm) sin(8.7?t). (a) Find the period of this motion. s (b) Find the frequency of the motion. Hz (c) Find the amplitude of the motion. cm (d) Find the..
A horizontal vinyl record of mass 0.10 kg and radius 0.10m rotates freely about vertical axis through its center with and angular speed of 4.7 rad/s. What is the angular speed of the record immediately after the putty sticks to it
A satellite is placed in orbit 9.00 105 m above the surface of the planet Jupiter. Jupiter has a mass of 1.90 1027 kg and a radius of 7.14 107 m. Find the orbital speed of the satellite
A rock climber throws a small first aid kit to another climber who is higher up the mountain. What is the vertical height between the two climbers
An object of mass M = 15.0 kg is attached to a cord that is wrapped around a wheel of radius r = 12.0 cm and mass m = 50.0 kg. The object slides down a frictionless incline which makes an angle ? = 40.0° with the horizontal. Assume the axle of the..
A 5kg ball moving to the right at 6m/s strikes a 3kg initially at rest. The 5kg ball continues moving in the same direction at 2m/s. find the velocity and direction of the 3kg ball
Assume that the mud ends up uniformly distributed over a surface area of the valley measuring 0.3 km x 0.3 km, What is the mass of the mud sitting above a 4 m2 area of the valley floor
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