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Q. A rock stuck in the tread of a 59.0 cm diameter bicycle wheel has a tangential speed of 3.20 m/s. When the brakes are applied, the rock's tangential deceleration is 1.20 m/s^2
Q. A 202-kg projectile, fired with a speed of 123 m/s at a 53.0 angle, breaks into three pieces of equal mass at the highest point of its arc (where its velocity is horizontal). Two of the fragments move with the same speed right after the explosion as the entire projectile had just before the explosion; one of these moves vertically downward and the other horizontally.
A.Determine the magnitude of the velocity of the third fragment immediately after the explosion.
B.Determine the direction of the velocity of the third fragment immediately after the explosion. (find theta above the horizontal)
C.Determine the energy released in the explosion.
If the surface of the water is calm and the pool is h = 1.52 m deep, find out the minimum diameter of the raft that would prevent the diamond from being seen.
A charge of +2q is fixed to one corner of a square, while a charge of -1q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of square, so the potential is zero at each of the two empty c..
An Atwood machine consists of two masses, = 7.1 and = 8.7 , linked by a cord that passes over a pulley free to rotate about a fixed axis. The pulley is a solid cylinder of radius = 0.40 and mass 0.70 .Determine the magnitude of the acceleration of..
What was the average acceleration throughout the trip
A kayaker needs to paddle north across a 100m wide harbor. The tide is going out, creating a tidal current that flows east at 2 m/s. The kayaker can paddle with a speed of 3 m/s.
A railroad car of mass 40900 kg moving at 3.35m/s collides and couples with two railroad cars,each of the same mass as the single car and moving in the same direction at 1.53m/s. what is the speed of three cars after the collision.
Write down the expression for net torque
Two point charges, Q_1 = -6.1 mu C and Q_2 = 2.0 mu C, are situated between two oppositely charged parallel plates. The two charges are separated by a distance of x = 0.30 m. suppose that the electric field produced by the charged plates is unifor..
What is an angular acceleration
If she were to use the mattress as a trampoline losing contact with it for part of each cycle. What minimum amplitude of oscillation does she need.
A river flows due east at 1.43 m/s. A boat crosses the river from south shore to the north shore by maintaining a constant velocity of 10.5 m/s due north relative to the water.
What effect will increase in temperature from 25 degree Celsius to 32 degree Celsius of the metal metre stick have on the measurement of the dimension of rectangular block? Why are corrections not generally essential for this effect.
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