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Question: Assume all temperatures to be exact. A 5.20-g pellet of aluminum reaches a final temperature of 78 degrees C when gaining 200J of heat.
Question I: What is its initial temperature?
Please show all work so I can fully understand all concepts!
The left end of a long glass rod, 10.0 in diameter, has a convex hemispherical surface 5.00 in radius. Determine the position of the image of an object placed in air
The isotope 88224Ra of radium has a decay constant of 1.19×10-6 per second. What is the half-life (in days) of this isotope
Identical objects are located at the same distance from two spherical mirrors, A and B. Find the ratio fA/fB of the focal lengths of the mirrors
A 0.065-kg tennis ball moving to the right with a speed of 15 m/s is struck by a tennis racket, compute the magnitude of the average force exerted on the ball?
On a frictionless, horizontal air table, puck A (with mass 0.150 kg ) is moving toward puck B (with mass 0.400 kg ), What was the speed of puck A before the collision
The coefficient of kinetic friction between a refrigerator (mass 100kg) and the floor is 0.20, and the coefficient of static friction is 0.25. If you apply the minimum force needed to get the refrigerator to move, what will the acceleration be?
A motorist drives along a straight road at a constant speed of 15.0m/s. Find the total displacement of the officer as theyovertake the motorist
two charges attract each other with a force of 2.5 n. what will be the force if the distance between them is reduced to
A boxcar of mass 5.68×10^4 kg is rolling south at 2.33 m/s when it collides with, and couples to, another boxcar of mass 5.11 x 10^4 kg which is initially at rest. After collision, what is the velocity of the coupled boxcars?
A 1.0 kg mass is connected to a spring with a spring constant of 9.00 N/m. find the maximum spring potential energy of the simple harmonic motion
a rock climber stands on top of a 52 m high cliff overhanging a pool of water. he throws two stones vertically downward
The magnetic field of the earth at a certain location is directed vertically downward and has a magnitude of 50.0 µT. A proton is moving horizontally toward the west in this field with a speed of 6.00*106 m/s.
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