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Q1. An engine does 20000 J of work and rejects 6120 J of heat into a cold reservoir whose temperature is 285 K. What would be the smallest possible temperature of the hot reservoir?
Q2. A string of 11 identical Christmas tree lights are connected in a series to a 128v source. The string dissipates 78 watts. What is the equivalent resistance of the light string?
Q3. If the accelerating plates are 2.9 cm apart, and have a potential difference of 28,000 V, what is the magnitude of the uniform electric field between them?
What is the magnitude of the runner's total displacement . What is the phase difference between the two waves next they reach the observer.
What is speed of the car just before it lands safely
How much time elapses between first splash and second splash
What is magnitude of the angular momentum
The pilot of the spaceship measures the length of the moving ship as 30 meters. Establish its length as measured by a person on earth.
What current is required in the windings of a long solenoid that has 1710 turns uniformly dispersed over a length of 0.547 m in order to produce a magnetic field of magnitude 0.0002 T at the center of the solenoid.
A gymnast of mass 56.0 {rm kg} hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 {rm m/s^2} for the acceleration of gravity.
Establish the wave functions and the general expression
Illustrate the cause of the components accelerating from rest down the conveyor.
A sanding disk with rotational inertia 2.4 10-3 kg•m2 is attached to an electric drill whose motor delivers a torque of 8 N•m about the central axis of the disk. What are the following values about the central axis at the instant the torque has been ..
Outline what you know about Plasmonics? Outline what you know about Raman spectroscopy and surface enhanced Raman spectroscopy?
The work completed by friction on the rock when it moves from point to point at the bottom of the bowl has magnitude 0.22. Just as the rock reaches point, what is the normal force on it because of the bottom of the bowl .
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