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A machine part rotates at an angular speed of 0.60 rad/s; itsspeed is then increased to 2.2 rad/s at an angular acceletation of0.70 rad/s2. Find the angle through which the part rotates beforereaching this final speed.
A pair of speakers separated by 0.700m are driven by the same oscillator at a frequency of 658 Hz. An observer, originally positioned at one of the speakers, begins to walk along a line perpendicular to the line joining the speakers.
A flat circular coil with 146 turns, a radius of 2.14 x 10-2 m, and a resistance of 0.506 ? is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at ..
How far east of his starting point will he reach the opposite bank? What is the magnitude of his velocity relative to the earth.
The work performed as a function of time for a process is given by W = at3 , where a = 2.4 J/s3. What is the instantaneous power output at t = 2.6 s
Mary observes damped oscillations of a glider on air track. she observed that the amplitude decreased to 30% of its original value after 12s
A 25 kg child at a playground runs with an initial speed of 2.5 m/s along a path tanget to the rim of a merry-go-round with a radius of 2.0 m and jumps on. Find the angular velocity of the child and merry-go-round
q1. a dentists drill starts from rest. after 3.20 s of constant angular acceleration it turns at a rate of 2.46 104
An observatory has an 8-inch Celestron telescope. Estimate the diffraction limit of this telescope. Estimate the minimum size a feature on the surface of the Sun must have to be resolved by this telescope.
A deep sea diver should breath a gas mixture that has the same oxygen partial pressure as at sea level, What is the partial pressure of oxygen at sea level
Suppose a straight 1.35mm -diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B, What current would the wire carry
A dart is thrown horizontally toward the bull's-eye, point P on the (non-standard size) dart board, How far away from the dart board did the dart thrower stand
An iceboat is gliding on a frozen lake with no propulsive force being applied. Does the horizontal momentum of the boat Change
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