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A system does 4.4 × 104 Joule of work, and 7.9 ×104 Joule of heat flows into the system during the process. Obtain the change in the internal energy of the system.
Three polarizing plates whose planes are parallel are centered on a common axis. The directions of the transmission axes relative to common vertical direction.
a crane is lifting a180kg crate upward with an acceleration of 1.2.the cable from the crate passes over a solid
A single-turn circular loop of radius 5 cm is to produce a field at its center that will just cancel the earth's field of magnitude 0.7 G directed at 70 below the horizontal north direction. Find the current in the loop.
Let's say you have a prescription for contacts of -2 diopters. Estimate how far you will be able to focus
An air-track glider attached to a spring oscillates between the 16.31 cm mark and the 51.41 cm mark on the track. What is the maximum speed of the glider
Ball 1, with a mass of 150g and traveling at 10.0m/s , collides head on with ball 2, which has a mass of 300g and is initially at rest. What are the final velocities of each ball if the collision is perfectly elastic? What are the final velocities of..
he empire state building is 450 meters high. A pennydropped from the top would have what speed when it hits the sidewalk? A baseball player pops a flyball 20.0m straight up and the cathcer tossess his mask to catch the ball. How long will the cathc..
A 1200 kg ore cart is rolling at 10.8 m/s across a flat surface. A crane dumps 691 kg of ore (vertically) into the cart. How fast does the cart move after being loaded with ore
The block in the figure below has a mass of 5.7 kg and it rests on an incline of angle %u03B8. determine the angle of the incline
When viewed in a spherical mirror, the image of a setting sun is a virtual image. What is the radius of curvature of the mirror
careful measurements of local variations in the acceleration due to gravity can reveal the locations of oil deposits.
A 10.0kg block of ice is sliding due east at 8.00 m/s when it collides elastically with a 6.00kkg block of ice, Determine the velocities of the blocks of ice
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