Merry-go-round rotates from rest with angular acceleration
A merry-go-round rotates from rest with the angular acceleration of 1.60 rad/s2. Determine how long it takes to rotate through the first 2.5 rotations.
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The energy of n = 2 Bohr orbit is -30.6 eV for an unidentified ionized atom in which just one electron moves about the nucleus. Determine the radius of the n = 5 orbit for the species?
Yellow-green light of wavelength having 550 nm in air is incident on the surface of the flat piece of flint glass at an angle of 60 degrees. i) Determine the angle of refraction of the light? (Deduce your answer as an integer)
There is the warning buoy situated 6 miles directly north of port. Find bearing of buoy as seen from ship after 10.5 hours?
The two spherical ball are positioned so their centers are 3.58 m apart. The force among them is 2.73 x 10^-8 N. When the mass of the smaller ball is around 57.2 kg, determine the mass of the other ball?
The wires are 0.1 m apart and the sum of the magnetic force and gravitational force on the upper wire is zero. Determine the magnitude of the current in the wires. (Avoid the magnetic field of Earth)
When first seen to east if the observer, angle of elevation to airplane is 60.3 degrees. After 71 seconds, angle of elevation is 46.6 degrees. Determine speed of an airplane.
The wire carries a current 10 A in a direction which makes an angle 30 deg. with the direction of a magnetic field of strength 0.3 T. Determine the magnetic force on a 5m length of the wire.
Front wall is 11.5 feet tall and back wall is 18.6 feet tall. Determine length of roof line and depth of shed from front to back.
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