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A vertical ideal spring is mounted on the floor and has a spring constant of 124 N/m. A 0.50-kg block is placed on the spring in two dissimilar ways. (a) In one case, the block is placed on the spring and not released until it rests stationary on the spring in its equilibrium position. Decide the amount (magnitude only) by which the spring is compressed.(b) In a second situation, the block is released from rest immediately after being placed on the spring and falls downward until it comes to a momentary halt. Decide the amount (magnitude only) by which the spring is now compressed.
question the entropy increase after mixing 2 moles of oxygen 1 mole of nitrogen which were prepared at the same
A baseball is thrown from the roof of 23.5 m-tall building with an initial velocity of magnitude 10.6 m/s and directed at an angle of 52.5 degrees above the horizontal. What is the speed of the ball just before it strikes the ground
Two air-track gliders m1 and m2 are joined together with a light string. What is the tension in the cord joining gliders
for an arrangement sshown block 1 and block 2 are both the same mass. determine the downward acceleration of block1
A vector has an x-component of ?30.0units, Find the magnitude and direction of the vector
A police car has a 1000Hz siren. It is traveling at 35m/s on a day when the speed of sounds through air is 350m/s. What change of frequency does the observer hear
A solenoid of cross sectional area 1.4 m2 and 2.0 m long carries a current of 4.0 A. It stores an energy of 3.4 J. How many turns per unit length are in this solenoid
Suppose 2.50 kg of 32 degrees C water is mixed with 9.30 kg of 65 degrees C water. If no heat is lost in this system, what is the final temperature of the water
A softball of mass 0.220kg that is moving with a speed of 8.5m/s collides head-on and elastically with another ball initially at rest. Calculate the mass of the target ball
Ball A is attached to one end of a rigid massless rod, while an identical ball B is attached to the center of the rod, Find the tension in each half of the rod
Two blocks rest on a horizontal frictionless surface. (top block weighs xkg, the bottom box weighs 10kg). what is the mass of the top box
You have invented a new game and are playing it with your friends. You have a projectile launcher that fires a brick (mass=2 kg) with a speed and angle that you can adjust. What is the work done by friction during the block's motion
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