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You measure the length of a distant car to be subtended by an angular distance of 2.0o. If the car is actually 5.0 meter long, determine approximately how far away is the car?
A daredevil is shot out of a cannon at 43 degrees to the horizontal with an initial seed of 25m/s. A net is positioned at a horizontal distance of of 50m from the cannon from which it is shot. At what height above cannon should the net be placed i..
During a particular thunderstorm, the electric potential differencebetween a cloud and the ground is Vcloud -Vground = 2.60*108 V, with the cloud being at the higherpotential. What is the change in an electron's electric potentialenergy when the el..
In a thin film experiment, a wedge of air is used between two glass plates. how much thicker is the air wedge at the 16th dark fringe than it is the 6th
a race car makes two and a half laps around a circular track in 5.1 min. What is the car's angular speed
A piece of metal is released under water. The volume of the metal is 37.0 cm3 and its specific gravity is 4.7. What is its initial acceleration
You pull downward with a force of 32 N} on a rope that passes over a disk-shaped pulley of mass 1.2 kg and radius 0.07 5m. Find the linear acceleration of the 0.61 kg mass.
A photon of wavelength 4.220×10?2nm strikes a free electron and is scattered at an angle of 38.0?from its original direction
Two capacitors give an equivalent capacitance of 9.00 pF when connected in parallel and an equivalent capacitance of 1.70 pF when connected in series. What is the capacitance of each capacitor? smaller capacitor pF bigger capacitor pF
A horizontal wire of length 0.53 m, carrying a current of 7.5 A, isplaced in a uniform external magnetic field. When the wire is horizontal, it experiences no magnetic force. When the wire istilted upward at an angle of 19 degrees, it experiences a m..
A student throws a set of keys vertically upward to her sorority sister, who is in a window 4.00m above. The second student catches the keys 1.50s later. (a) With what initial velocity were the keys thrown? (b) what was the velocity of the keys just..
The maximum speed of a 2.6-kg mass attached to a spring is 0.74 m/s, and the maximum force exerted on the mass is 11 N. What is the force constant of the spring
A student on a piano stool rotates freely with an angular speed of 3.05 rev/s. Calculate the initial kinetic energy of the system
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