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The left mass (10 kg) has a coefficient of kinetic friction between itself and the table of .25, while the right mass has a kinetic coefficient of .18. A 40 N pushing forces applied from the left, pushing these masses rightward. Please calculate the contact force that acts between the masses.
A mountain climber jumps a 3.0m wide crevasse by leaping horizontally with the speed of 8.00 m/s. If the climber's direction of motion on landing is 45 degrees, what is height difference between the two sides of the crevasse? Where does the climbe..
For the third circuit, consisting of a single battery and two light bulbs in parallel, What is the current through each bulb
A noisy grinding machine in a factory produces a sound intensity of 1.40 multiply.gif 10-3 W/m2. Calculate the decibel level of this machine
A loudspeaker of mass 18.00 {rm kg} is suspended a distance of h = 1.20 {rm m} below the ceiling by two cables that make equal angles with the ceiling.
An aspiring physicist wants to build a scale model of a hydrogen atom for her science fair project. how big should she try to make the nucleus
Two light bulbs labeled 50 W and 100 W, find the actual power consumed by the brighter bulb
A resistor draws 12mW when placed acriss the terminals of a 1.5V battery, Determine the current drawn by the resistor
There are two major types of aberration (defective image formation) in lenses: spherical and chromatic. Spherical aberration comes from fact that a spherical lens has the property of focusing parallel rays to a single point only approximately.
(a) Calculate the ratio of the electric potential at the surface of the large sphere to that of the small sphere. (b) Calculate the ratio of the magnitudes of the electric fields at the surface of the large sphere to that of the small sphere.
As expected, the predictions of Coulomb's law are well confirmed. You find that the forces are: repulsive? or attractive? 2. and that the magnitude of each force is?
Two point charges q1= 5.00x10^-6C and q2= -3.0x10^-6C are located on x-axis at x1= -0.4m and x2=0.6m, Find the electric field and the electric potential at the origin
A 5.0 ? resistor is connected in series with another resistor and a 5.0 V battery. The current in the circuit is 0.70 A. Calculate the value of the unknown resistance
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