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You are in a laboratory and investigating properties of a converging lens. You place a screen 80 cm away from the object and adjust the location of the lens until you see on the screen an image, which is three times larger than the object.
Calculate how far the image is from the lens.
Calculate the focal distance of the lens.
A golf ball rolls off the top of a flight of concrete steps of total vertical height 2.40m. what is the bounce height on the fourth bounce
A mass m equals 4 kg on a slanted surface theta equals 30 degrees. A light rigid cord runs from mass m to pully beta equals 1/2, calculate the magnitude of the systems acceleration
A refrigerator shelf is an array of parallel wires with uniform spacing of 10.50 cm between centers. Find the number of diffracted beams leaving the other side of the shelf
Two rays travelling parallel to the principal axis strike a large plano-convex lens having a refractive index of 1.60. find the difference in positions where they cross the principal axis
A fireman, 25.6 m away from a burning building, directs a stream of water from a ground level fire hose at an angle of 39.5° above the horizontal
A string of length L vibrates at its fundamental frequency. What is the amplitude of each of the traveling waves that form this standing wave
A laboratory technician drops an 83.5g solid sample of unknown material at a temperature of 100?C into a calorimeter. Compute the specific heat capacity of the sample
A gas is compressed at a constant pressure of 0.800 atm from 12.00 L to 3.00 L. In the process, 380 J of energy leaves the gas by heat. (a) What is the work done on the gas? J (b) What is the change in its internal energy?
A proton (+1.6 x 10^-19 C) is traveling horizontally at 5.4 x 10^6 m/s south. What is the force of the proton along with direction
A 25 kg box is released from rest on a frictionless ramp making an angle of 42o with the horizontal. Determine the normal force on the box
The inner and outer shells are connected by a wire (passing through a hole in the middle shell, without touching it), so they are at the same potential.
A transformer is to be used to provide power for a computer disk drive that needs 5.8 V (rms) instead of the 120 V (rms) from the wall outlet. Find the number of turns in the secondary
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