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Electrons produced by a certain device are observed to travel in a circular path with a radius of 2.0 cm when placed in a uniform magnetic field whose strength is 10 MN/C. What is the speed of the electrons emitted by this device? (You may express this speed as a fraction of c.)
A car starts at a point with polar coordinate (36 m, 0o) and travels around the circle to the point (36 m, 180o). What is the distance (arc length) traveled by the car
Assume a load resistor RLoad is placed in parallel with a 12 volt battery, calculate the internal resistance of the battery
Radiation at temperature Ti fills a thermally insulated cavity of volume V. If the cavity expands isentropically to volume rV, how much work is done by the radiation , as a fraction of its initial energy? How much work would be done if the expansion ..
A golf ball of mass 0.045 kg is hit off the tee at a speed of 32m/s . The golf club was in contact with the ball for 3.10×10?3s. Find the impulse imparted to the golf ball
An electron of mass 9.11 10-31 kg has an initial speed of 2.80 105 m/s. Determine the magnitude of the force exerted on the electron
A wave pulse travels down a slinky. The mass of the slinky is m = 0.94 kg and is initially stretched to a length L = 7.5 m. What is the speed of the wave pulse
A flight attendant pulls her 65N flight bag a distance of 388m along a level airport floor at a constant velocity. The force she exerts is 38 N at an angle of 51° above horizontal.
A 12.3 µC particle with a mass of 2.53E-5 kg moves perpendicular to a 1.23 T magnetic field in a circular path of radius 25.6 m. How long will it take the particle to complete one orbit
A target in a shooting gallery consists of a vertical squarewooden board, 0.250 m on a side and with mass 0.750 kg, What is the angular speed of the board just afterthe bullet's impact
A cubical box .2 m on a side is completely immersed in a fluid. The pressure at the top of the box is 105 kPA, What is the denstiy of the fluid
question1a softball of mass m 0.195 kg is pitched at a speed v0 27.3 ms. due to air resistance by time it reaches
a criminal is escaping across a rooftop and runs off the roof horizontally at a speed of 5.3 ms hoping to land on the
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