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Problem:
Calculate the currents I1, I2, and I3 in the three branches of the circuit and the potential differences across each resistor. The points ‘A' and ‘B' represents junctions in the circuits.
A dock worker loading crates on a ship finds that a 24 kg crate, initially at rest on a horizontal surface, requires a 71 N horizontal force to set it in motion. Find the coefficient of kinetic friction
A certain satellite travels in an approximately circular orbit of radius 2.4 × 106 m with a period of 5 h 31 min. Calculate the mass of its planet from this information
A converging lens of focal length f1=11.0 cm is placed 52.0 cm to the left of a converging lens of focal length f2 = 22.0 cm. What is the overall magnification of the lens combination
A motorist travelling at 82 km/hr is being chased by a police car at 131 km/hr. If the police car starts from 3.5 km back, how long does it take to catch the motorist? Leave time in hours.
Given a spherical cell with outer radius R=6E-6 m, with thickness 5E-9 m. The potential difference across the membrane is -90 mV. Find potential energy stored within the membrane
The electric field just above the surface of the charged drum of a photocopying machine has a magnitude E of 2.7 x 105 N/C. What is the total charge in coulombs on the drum
An object of mass .550 kg is lifted from the floor to a height of3.50m at a constant speed. How much work is done by the lifting force? How much work is done by the Earth on the object? What is the net work done on the object?
A machine has an 650 g steel shuttle that is pulled along a square steel rail by an elastic cord (see figure below). The shuttle is released when the elastic cord has 16 N tension at a 45° angle
A wall is composed of two materials. Material 1 has a thickness of 3.31 centimeter and a thermal conductivity of 0.1 while material 2 has a thickness of 6.58 centimeter and a conductivity of 1. find the energy loss per second to the nearest watt
A ray of light is refracted from a fluid into glass(n=1.6). The incident angle is 40 degrees and the refracted angle is 30 degrees. What is the index of refraction of the fluid
Two blocks, masses m1 and m2 are connected by an ideal string passing over an ideal pulley. Find the acceleration of each block
A wave has the following properties: amplitude = 0.208 m, period = 0.687 s, wave speed = 13.7 m/s. The wave is traveling in the -x direction
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