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An electron has a kinetic energy of 2.80 x 10-17 J. It moves on a circular path that is perpendicular to a uniform magnetic field of magnitude 5.30 x 10-5 T. Determine the radius of the path? (answer in meters)
A solid sphere is released from height h from the top of an incline making an angle ? with the horizontal. Calculate the speed of the sphere when it reaches the bottom of the incline in the case that it rolls without slipping
A resistor of 2 ? and another of 3 ? are connected in parallel, and this combination is joined in series with a 4-? resistor across a battery. what is the potential drop across the 3-? resistor
A 150g ball has a kinetic energy 27.2J. A) What's the magnitude of its momentum? Express your answer with the appropriate units. B) Use your answer to find its speed. Express your answer with the appropriate units.
Katie and Emily are riding on a circular merry-go-round that has a radius of 5m. Katie is on a horse that is 2.5m from the center of merry-go-round and Emily is on a tiger that is 4.5 m from the center of the merry-go-round. What is Katie's tangen..
Calculate the angle of refraction at the first surface
An electron with kinetic energy 2.10 keV circles in a plane perpendicular to a uniform magnetic field. Find the frequency of circling
A cart carrying a vertical missile launcher moves horizontally at the constant velocity of 30.1 to the right. It launches a rocket vertically upward. The missile has an initial vertical velocity of 40.33 relative to the cart.
The moon is 3.85Ã-10^8 m from Earth, and it takes 27.3 days to orbit Earth. At what speed is the moon traveling relative to Earth
If you were to build a pipe organ with open-tube pipes spanning the range of human hearing (20 Hz to 20 kHz), what would be the range of the lengths of pipes required
A force of 250 N is applied to a hydraulic jack piston with a0.1m diameter. how far doesthe output piston move per stroke
A small statue has a height of 3.4 cm and is placed in front of a concave mirror. Find the focal length of the mirror
A baseball (m = 148 g) approaches a bat horizontally at a speed of 41.5 m/s (93 mi/h) and is hit straight back at a speed of 45.9 m/s (103 mi/h).
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