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An engine receives 890 J of heat from a hot reservoir, and gives off 370 J of heat to a cold reservoir.
a) What is the work done?
b) What is the efficiency of this engine?
If the bullet leaves the gun at a speed of 177 m/s, and misses by 1.02 m, at illustrate what angle should the gun be aimed so as to hit the target?
A 21.8-kg box rests on a frictionless ramp with a 15.7° slope, what is the smallest force F the mover will have to exert to move the box up the ramp
Find the angular velocity of the earth as it spins on its axis and the tangential velocity of an object at the equator and one at the University of West Florida in Pensacola
an aluminium sphere with a specific gravity of 2.7 falls through water and reaches a terminal speed of 7 ms. what is
A force applied to an object of mass m1 produces an acceleration of 3.60 m/s2. find its acceleration under the action of the force
A seismographic station receives S and P waves from an earthquake, separated in time by 16.8 s. Assume the waves have traveled over the same path at speeds of 4.50 km/s and 7.40 km/s. Find the distance from the seismograph to the focus of the quake.
you and your friend are trying to determine if you can use a capacitor to extend the lives of batteries in circuits.
When light is incident from air perpendicular to the surface of a certain medium, Find the speed of light in the medium
An object is a distance 6f from a converging lens. construct a ray diagram showing the location and orientation of the image
A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. Find the smallest value for the angle , such that the lower end of the board does not slide along the ground
If lithium ion Li+2 is treated as a classical system of one electron of charge ?e going around a nucleus of charge 3e on a circle of radius 1.77× 10?11 m, find the ionization energy of the electron
Interactive LearningWare 26.2 offers a review of the concepts that play roles in this problem. What is the height of the final image
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