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The rms speed of molecules in a gas at 40.0°C is to be increased by 1.8 percent. Determine to what temperature must it be raised?
A 20-kg block, m1, with a pulley attached slides along a frictionless ledge. calculate the tension in the connecting string
The sun appears to move across the sky, because the earth spins on its axis. To a person standing on the earth, the sun subtends an angle of sun = 9.30 x 10-3 rad (see Conceptual Example 2). How much time (in seconds) does it take for the sun to move..
A car with good tires on a dry road can decelerate at about 5.0 m/s2 when braking. Suppose a car is initially traveling at 55 mi/h. (a.) How much time does it take the car to stop.
What is the radiation pressure (force/area) of a laser pointer on a heavy, highly absorbing surface? Assume that the laser has an output power of 1mW, a wavelength of 600nm, and a beam radi- us of 1mm. To do this problem, first compute the number ..
A charged particle moves through a velocity selector at a constant speed in a straight line. The electric field of the velocity selector is 4290 N/C, Find the charge-to-mass ratio of the particle
The current in a coil drops from 3.9 A to 1.8 A in 0.53 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
A spring is hung from the ceiling. A 0.400-kg block is then attached to the free end of the spring. Find the angular frequency of the block's vibrations
Light of a wavelength 450 nm is incident on a sodium emitter in a photoelectric effect apparatus. What is the cutoff frequency for the emitter
A car traveling initially at 53.5 km/h crashes into a brick wall. The front end of the car collapses, Find the horizontal force exerted on him by the seat harness
(from Roger Ordidge, with alterations) The magnetic field can store energy, but it can do 110 work. Therefore, another agency must be responsible for doing the work that puts the energy into the magnetic field.
you put 1kg of water at 1 degree celsius together with 0.5kg of steam at 100 degrees celsius what will the final
An indestructible bullet, 2cm long, is fired straight through a board which is 10 cm thick. What is the total time the bullet is in contact with the board
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