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A candle 8.80 cm high is placed in front of a thin converging lens of focal length 40.0 cm. What is the image distance i when the object is placed 105.0 cm in front of this lens?
At a time t = 2.60s , a point on the rim of a wheel with a radius of 0.180m has a tangential speed of 55.0m/s as the wheel slows down, Calculate the wheel's constant angular acceleration
As the captain of the scientific team sent to Planet Physics, one of your tasks is to measure g. You have a long, thin wire labeled 1.41g/m and a 1.30kg weight. You have your accurate space cadet chronometer but, unfortunately, you seem to have fo..
in a headon collision (without friction) a 4000 kg truck going 10m/s due east strikes a 2000kg car gong 40m/s west, what direction do they roll in
A lightbulb has a resistance of 230?when operating with a potential difference of 180V across it. What is the current in the lightbulb?
A viscous fluid is flowing through two horizontal pipes. They have the same length, although the radius of one pipe is three times as large as the other. what is the volume flow rate QB in the wider pipe
A parachutist descending at a speed of 13.4 m/s loses a shoe at an altitude of 54.2 m. Illustrate what is the velocity of the shoe just before it hits the ground? The acceleration of gravity is 9.81 m/s2.
A student is reading material written on a blackboard. Her contact lenses have a refractive power of 57.50 diopters; the lens-to-retina distance is 1.750 cm. How far (in meters) is the blackboard from her eyes
A cylindrical copper rod has resistance of 0.3 ohm. It is reformed to 3.8 timesm its original length with no change of volume. What is its new resistance in ohms?
an object is hanging by a string from the ceiling of an elevator. the elevator is moving upward with a constant speed.
External Work equal to 4 x 10^-7 j is needed to move a -5-nC charge at constant speed to a point at which the potential is -20V. What is the potential at the initial point
A 12.0 micro F capacitor is connected to a power supply that keeps a constant potential difference of 22.0V across the plates. By how much did the energy change during the insertion
A constant horizontal force a pushes a kg FedEx package across a frictionless floor on which an xy coordinate system has been drawn. package's x and y velocity components versus time t.
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