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A thermodynamic system undergoes a process in which its internal energy increases by 480 J. If at the same time 200 J of work is done on the system, find the energy transferred to or from it by heat?
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What is tension in each rope
A ball is thrown toward a cliff of height h with a speed of 30m/s and an angle of 60? above horizontal, What was the maximum height of the ball
A block with mass m = 15kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4234N/m after being compressed the distance x1 = 0.536m from the spring's unstretched length. The floor is frictionless except for a roug..
A brick hangs from a string attached to the ceiling. When a horizontal force of 15 N is applied to the brick, What is the mass of the brick
A proton that has a mass m and is moving at 390 m/s in the + direction undergoes a head-on elastic collision with a stationary oxygen nucleus of mass 16m
When Capacitor C1 having voltage V is connected with another capacitor C2 having zero charge in parallel with C1 what would be the dissipated energy.
A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s (a) what is its kinetic energy at the end of the 30 s.
A worker drops a wrench from the top of a tower 88.00 m tall. With what velocity does the wrench strike the ground? (Suppose the positive direction is upward.)
The magnitude of each force is 204 N, the force on the right is applied at the angle 29 and the mass of the block is 12kg. The coefficient of friction is 0.138. The acceleration of gravity is 9.8 m/s2. What is the magnitude of the resulting accelerat..
Three 15.53-g Styrofoam balls of radius 2 cm are coated with carbon black to make them conducting and then are tied to 1.15-m-long threads and suspended freely from a common point
In designing a transformer, an engineer knows she needs 240 V to come out of the secondary circuit. what is the ratio of primary voltage to primary turns
Two charged spheres are 8.45 cm apart. They are moved and the force on each of them is found to have been tripled. How far apart are they now.
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