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A 2,00 kg piece of steel with a temperature of 70c is submerged in 1,0 kg of water at 15c.At what temperature does the metal.water syestem reach equilibrium? The specific heat of steel is 0,107cal/(gxK)
A 0.31 MeV x-ray photon collides by an electron and scatters straight back the way that it came. What is the kinetic energy of the scattered electron? What is the energy of the backscattered photon? Suppose that it was initially at rest.
The men's world record for the shot put, 23.12m, was set by Randy Barnes of the United States on May 20, 1990. If the shot was launched from 6 f above the ground at an initial angle of 42 degrees, what was its initial speed.
The magnetic field associated with an electromagnetic wave has amplitude of 2.5 x 10-6. What is the radiation pressure associated with this wave
A motorist drives south at 22.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 3.00 min, Find the total vector displacement and south west
Rolling ball: the first hill is at 3 meter above the valley, second hill is at 7 meter. Find will the ball climb up to the top of the second hill
question1a professors office door is 0.92 rm m wide 2.0 rm m high 4.0 rm cm broad has a mass of 25 rm kg and pivots on
If the cross product of a vector of length 5 and a vector of length 3 in a vector of length 10. What is the angle between them?
A 2.0 kg particle P has a position vector of magnitude 3.0 m and angle ?1 = 45° and a velocity vector of magnitude 5.5 m/s and angle ?2 = 30°. The force on the particle has magnitude 4.7 N and angle ? 3 = 30°. What is the magnitude of the torque on t..
A frictionless ramp is constructed so that it is at a 30 degree angle to the horizontal. It is 1.8 meters long and 0.9 meters high. How far along the rough patch do the blocks go before stopping
Compare these with the corresponding entropy changes and show the total entropy change is the same for each path
A firefighter mounts the nozzle of his fire hose a distance 40.1 m away from the edge of a burning building so that it sprays from ground level at a 45° angle above the horizontal. By what factor was the nozzle diameter changed
A certain element has a mass per mole of 54.9380 g/mol. How many moles of atoms are in a 268-g sample
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