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(1) Calculate the change in specific entropy of air as it is expanded from 2500kPa and 550 degrees C to 120kPa and 65 degrees C. Assume constant (average) specific heats.
A tube of air is open at only one end and has a length of 1.29 m. What is the distance between one node and the adjacent anti-node
It compresses the spring, and then is pushed back in the opposite direction by the spring, eventually losing contact with the spring.
A particle with a charge of -60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 19 cm and outer radius 31.0 cm. What is the total amount of charge on the nonconducting shell
A proton is confined to a nucleus that has a diameter of 5.7 10-15 m. what is the minimum uncertainty in its momentum
Calculate the momentum pi at the end of the plane in terms of the measured quantities x, y, L, and m. how far will it coast back up the ramp before changing directions
A load of 52.5 N attached to a spring hanging vertically stretches the spring 5.29 cm. What force is required to stretch the spring by this amount
At some point in its orbit, our asteroid is moving with a speed of 20 kilometers per second. Determine the kinetic energy of the asteroid
What is change in electrical potential energy of electron
A compact disc, initially at rest, is spun up to an angular velocity of 22 rad/s by a constant angular acceleration of 4.0 rad/s^2. How much time does the disk take to reach maximum velocity
A spaceship is moving around the Earth in a 500- x 1000km orbit. At apogee, a retrorocket is fired in a direction exactly opposite to the spaceship's velocity vector. How much time elapsed between retrofire and impact
Most of the motion generated by joints in the human body are examples of levers. An example of a third class lever is the forearm, what force is exerted by the biceps muscle
A molecule absorbs a 2.5 eV photon and transitions from the n=0, l=0 state to the n=1, l=0 state. What is its classical frequency
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