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A dentist's drill starts from rest. After 3.50 s of constant angular acceleration it turns at a rate of 2.4*104 rev/min.
1) Discover the drill's angular acceleration.
2) Decide the angle (in radians) through which the drill rotates during this period.
How many 95W light bulbs can you use in a 120V circuit without tripping a 17A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each light bulb is V.)
two sound waves from two different sources with the same frequency 508 hz travel in the same direction at 347 ms. the
A roller coaster car rolls down a frictionless track, reaching a speed V0(Velocity original) at the bottom. by what factor must you increase the height of the track
One electron collides elastically with a second electron initially at rest. After the collision, the radii of their trajectories are 1.50 cm and 2.90 cm, Determine the energy (in keV) of the incident electron
A pump lifts 320kg of water per hour a height of 3.5m. find the minimum necessary power output rating of the water pump
A basketball star covers 2.6 m horizontally in a jump to dunk the ball. His motion through space can be modelled precisely as that of a particle at his center of mass. His center of mass is at elevation 1.02m when he leaves the floor. It reaches a..
A plane accelerates down a runway. Markers beside the runway are 9.5 m apart. The plane moves between two adjacent markers in 0.182 s. Estimate the instantaneous speed of the plane
three point charges have equal magnitudes two being positive and one negative. these charges are fixed to the corners
the mean free path of an oxygen molecule is 2.0 times 10-5 m when the gas is at a pressure of 120 pa and a temperature
What phase difference among two otherwise identical travelling waves, moving in the similar direction along a stretched string, will result in the combined wave having amplitude 0.52 times that of the common amplitude of the two combining waves? Expr..
Type your question hereTwo converging lenses are separated by 23.80 cm. Determine the final image distance relative to the lens on the right
100 MW of electrical power is delivered at 200 kV to adistribution center over a transmission line which consumers 10% ofthe total power developed by the generating station in heatlosses.
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