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A light bulb is wired in series with a 133 ohm resistor, and they are connected across a 120 Volt source. The power delivered to the light bulb is 22.0 Watt. Determine the two possible resistances of the light bulb?
An object, which has a height of 5.50 cm, is placed 22.0 cm in front of a plane mirror : What will be the position of the resulting image? What will be the height of the resulting image?
You are called as an expert witness in the trial of a traffic violation. The facts are these: A driver slammed on his brakes and came to a stop with fix acceleration. Find how fast was he going when he hit his brakes
Knowing the sign of the work done on an object is a crucial element to understanding work. Positive work indicates that an object has been acted on by a force that tranfers energy to the object, thereby increasing the object's energy. Negative wor..
a loaded penguin sled weighing 90 n rests on a plane inclined at 20deg to the horizontal. between the sled and the
A 3.00kg stone is tied to a thin, light wire wrapped around the outer edge of the uniform 8.00kg cylindrical pulley, Find the angular acceleration of the pulley
A policeman uses a radar gun to detect the speed of drivers in a 65 mph (29.06 m/s) zone, What is the driver's speed, Is the driver breaking the speed limit
A 15-kg block rests on a level frictionless surface and is attached by a light string to a 5.0-kg hanging mass where the string passes over a massless frictionless pulley
An astronaut at rest on Earth has a heartbeat rate of 75 beats/min. When the astronaut is traveling in a spaceship at 0.89c, what will this rate be as measured by the following: an observer also in the ship, an observer at rest on Earth
A car of mass = 1200kg traveling at 55.0km/hr enters a banked turn covered with ice. What is the radius r of the turn
light rays in a material with index of refrection 1.25 can undergo total internal reflection when they strike the
the speed of a bobsled is increasing because it has an acceleration of 2.3 ms2. at a given instant in time the forces
1 a bug is on the rim of a disk of diameter 14 in that moves from rest to an angular speed of 78 revmin in 4.4 s.a.
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