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At time t=0s, a wheel has an angular displacement of zero radians and an angular velocity of (+28) rad/s. The wheel has a constant acceleration of (-0.54) rad/s^2. Calculate the average angular velocity in the interval from t=0 to t=20?
A light bulb is placed 22.3 cm in front of a concave mirror. Calculate the focal length of the concave mirror
An air puck of mass m1 = 0.24 kg is tied to a string and allowed to revolve in a circle of radius R = 1.0 m on a frictionless horizontal table. What is the horizontal force acting on the puck
A laser light passing through a double slit creates a diffraction pattern with maxima 1 cm apart. what is the distance between adjacent minima
A circular saw blade of diameter 0.175m starts from rest. In a time interval of 5.60s it accelerates with constant angular acceleration to an angular velocity of 140rad/s
You can ignore friction between the sled and surface of the pond. Use the work-energy theorem to find the speed of the sled at 3.00 m.
Two astronauts of equal mass 70 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 14 meters. What is the new angular velocity of the two astronauts
A total of 2.99·106 electrons are placed on an initially uncharged wire of length 2.25 m. What is the magnitude of the acceleration of a proton placed at that point in space
The gravitational force exerted on a baseball is 2.25 N down. A pitcher throws the ball horizontally with velocity 15.5 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 154 ms. Through what distance does it ..
A car and a motorcycle is racing from rest. The motorcycle first takes the lead because its constant acceleration am = 8.40 m/s2, How long does the car take to reach the motorcycle
An electron is released from rest at the negative plate between two 10.0 cm long parallel plates separated by 1.00 cm, What is the electron's velocity when it strikes the other plate
A space traveler weighs 565 N on earth. What will the traveler weigh on another planet whose radius is 3 times that of earth and whose mass is twice that of earth.
A uniform narrow tube 1.80m long is open at both ends. It resonates at two successive harmonics of frequencies 279Hz, What is the speed of sound in the gas in the tube
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