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Two blocks with different mass are attached to either end of a light rope that passes over a light, frictionless pulley that is suspended from the ceiling. The masses are released from rest, and the more massive one starts to descend. After this block has descended 1.20 meter, its speed is 3.00 meter per second. If the total mass of the two blocks is 15.0 kilogram, evaluate what is the mass of each block?
how long does it take electrons to get from the car battery to the starting motor? assume the current is 140 a and the
Consider the motion of a muon as it moves through the Earth's atmosphere. After a time ? = 2.20 e-6 s, it decays into other particles. What is the speed of the muon
The muon's rest mass is 105.7 MeV/c2, and its life-time is 2.2 x 10-6 s. Think a beam of muons with a kinetic energy of 800 MeV. What is its life-time in the beam observed in the laboratory frame? What is the speed of the muons in the beam?
find the quality x of a saturated wet mixture with a specific volume of 0.175 ft3lbm at a pressure of 1000 psig. state
Find the frequency in terahertz of visible light with a wavelength of 441 nm in vacuum
A bicycle tire pump has a piston with area .44in.2. what pressure does this produce on the air in the pump
explain the changes in the velocity acceleration and net force of a man with a parachute jumping off a plane. you need
In the deep ocean, a water wave with wavelength 95 m travels at 12 m/s. What will be the vertical position of the boat 5.0 s later
The engine of an aircraft propeller delivers an amount of power 171hp to the propeller at a rotational velocity of 2360 rev/min the torque= 516 Nm, How much work does the engine do in one revolution
The North Star (Polaris) is a distance 431 ly away and radiates energy in the form of light at a rate of 8.6 x 1029 W. What is the intensity of this light at the Earth
In some places, insect "zappers," by their blue lights, are a familiar sight on a summer's night. These devices utilize a high voltage to electrocute insects. One such device uses an ac voltage of 4200 V, which is obtained from a standard 120-V outle..
A Heavy rainstorm dumps 1.0 cm of rain on a city five km wide and 8 km long in a two hr period. How many metric tons (1metric ton = 10^3 kg) of water fell on the city? [1cm^3 of water has a mass of 1 gram=10^-3.] How many gallons of water was this?
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