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Suppose an electron is released from rest in a uniform electric field whose magnitude is 7.20 x 103 V/m.
(a) Through what potential difference will it have passed after moving 1.00 cm?
b) How fast will the electron be moving after it has traveled 1.00 cm?
A ball thrown with an initial velocity of 12 m/s at 30 degreesabove the horizantal from a rooftop 40 m high. Calculate: the maximum hight. the horizantal distance coverd when it is 40 m below the roof
An ideal gas initially at 20°C and 199 kPa has a volume of 3.40 L. It undergoes a quasi-static, isothermal expansion until its pressure is reduced to 94 kPa. (a) Find the work done by the gas. J (b) Find the heat added to the gas during the expans..
Two blocks with masses 500g and 510 g are connected to a rope and hung over a 50g cylinder with a radius of 4 cm. What is the rotational inertia of the cylinder
A satellite in a circular orbit around the earth with a radius 1.021 times the mean radius of the earth is hit by an incoming meteorite. Calculate the amount of that work converted to heat
A laser emits a narrow beam of light. The radius of the beam is 8.5 mm, and the power is 1.7 mW. What is the intensity of the laser beam
A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. How high will the ball rise
If the loop is placed in a uniform magnetic field of magnitude 0.200 T, illustrate what is the maximum torque that can act on it? The resistivity of copper is 1.7 multiplied by 10-8 · m.
In one type of computer keyboard, each key holds a small metal plate that serves as one plate of a parallel-plate, air-filled capacitor. Calculate the capacitance before the key is depressed
The value of the magnetic field for a certain type of electromagnetic wave is 2.12 ?T. What is the value of the electric field for that wave
An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. How far (in km) must he now travel to reach base camp
Will the car hit the barricade
Next you eliminate the 11 kg mass, place the rod horizontally, and strike one end with a hammer. How much time t would elapse before a microphone at the other end of the bar will detect a disturbance.
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