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An alpha particle travels at velocity v of magnitude 660 m/s through a uniform magnetic field B of magnitude .040 T. An alpha particle has a charge of +3.2 x 10 ^ -19 C and a mass of 6.6 x 10 ^ -27 kg. The angle between v and B is 51 degrees.
What is the radius of its circular orbit?
Three blocks are in contact with each other on a frictionless,horizontal surface. Find the resultant force on each block
A sound wave has a frequency of 677 Hz in air and a wavelength of 0.50 m. What is the temperature of the air
A spherical bowling ball with mass m = 3.2 kg and radius R = 0.107 m is thrown down the lane with an initial speed of v = 8.7 m/s. What is the magnitude of the final velocity
Sound enters the ear, travels through the auditory canal, and reaches the eardrum. The auditory canal is approximately a tube open at only one end. The other end is closed by the eardrum. A typical length for the auditory canal in an adult is abou..
a mortar crew is positioned near the top of a steep hill. enemy forces are charging up the hill and it is necessary for
A light ray enters a glass slab at point A at an angle of 58.6° with respect to the surface normal, What minimum value for the index of refraction of the glass can be inferred from this
Consider a roller coaster as it travels near the bottom of its track, what is the radius of curvature of the track
A parallel plate capacitor of capacitance 4.3 µF has the space between the plates filled with a slab of glass with ? = 3.9. Find the capacitance after the glass is removed
What is the lenght of the driveway. An electric field = (89000 N/C, right) causes the ball in the figure below to hang at a 20° angle. The ball's mass is 4.7 g. What is the charge on ball.
A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to ?(t)=?t+?t3, What is the initial value of the angular velocity
An astronaut weighs 152 N on the surface of the moon. If the same astronaut orbits the moon at an altitude equal to the moons radius, what gravitational force does the moon exert on him at this altitude?
in reaching her destination a backpacker walks with an average velocity of 1.34 ms due west. this average velocity
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