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consider a .10kg block being pushed horizontally along a tablewith a force of .10N so that the block moves 2.0m at a constantspeed in the same direction it is pushed.
How much work is done by the pushing force?
How much work is done by the frictionalforce that resists the pushing?
How much work is done by the force ofgravity acting on the book?
How much work is done by the normal forceof the table pushing on the book?
A 117 kg fullback runs at the line of scrimmage. How fast was he running initially
The energy released by nuclear bombs is measured in kiloton (kt) or megaton (Mt) units. One kiloton is a unit of energy released by 1000 tons of trinitrotoluene (TNT). One kiloton is 4.2×1012 joules. The yield of fission bombs is typically between..
Three +3.0-?C point charges are at the three corners of a square of side 0.50 m. Find the magnitude of the electric field at the center of the square
Calculate the the electrical repulsion that each bag exerts on the other. Imagine two 2.0{\rm g} bags of protons, one at the earth's north pole and the other at the south pole.
A viewing window in the Atlanta aquarium is 55 inches wide and 46 inches high. what is the outward force on the window
A ray of light strikes a mirror at an angle of 35.8° to the normal. What is the angle that the reflected angle makes with the normal
Fuel aboard a rocket has a density of 2870 kg/m^3 and is ejected with a speed of 2650 m/s. what volume of fuel must be burned per second
An ideal gas in a container is at a temperature of 78.5°C. What is the average translational kinetic energy of a gas
A solenoid is to have an inductance of 0.274 mH, a cross-sectional area of 5.73 10-4 m2, and a length of 37.9 cm. How many turns per unit length should it have
Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to six times the earth's radius of 6.38 106 m. . (b) Find the satellite's orbital period.
A playground merry-go-round of radius R = 1.40 m has a moment of inertia I = 255 kg · m2 and is rotating at 9.0 rev/min about a frictionless vertical axle. What is the new angular speed of the merry-go-round
A disk of radius R has a uniform surface charge σ on one side. A circular hole of radius R/2 is now cut in the center of the disk. What is the electric field at the center of the hole
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