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A fish takes the bait and pulls on the line with a force of2.5 {\rm N}. The fishing reel, which rotates without friction,is a uniform cylinder of radius 0.060 {\rm m} and mass 0.84 {\rm kg}. What is the angular acceleration of the fishingreel? How much line does the fish pull from the reel in0.40 {\rm s}?
A 0.218 kg ball is released from rest at the top of a 56.9 m tall building. Calculate the de Broglie wavelength of the ball
a 950 kg boat is traveling at 110 kmh when its engine is shut off. the magnitude of the frictional force fk between
An object made of a single atomic element weighs 2.4500 N in air and 2.1387 N when completely submerged in water. Calculate the density of the object
q1. one type of steel has a density of 8000 and a breaking stress of 6.9times108. a cylindrical guitar string is to be
A displacement vector has a magnitude of 12.0 km in the direction 40.0 degrees west of north. What is the north component of this vector
Two tiny conducting spheres are identical and carry charges of -29.4C and +70.0C. What is the magnitude of the force that each sphere experiences
When only a resistor is connected across the terminals of an ac generator (102 V) that has a fixed frequency, there is a current of 0.495 A in the resistor. calculate the impedance of the series combination
An 9.00 {\rm kg} point mass and a 15.0 {\rm kg} point mass are held in place 50.0 {\rm cm} apart. Find the magnitude of the acceleration of the particle
After the right string is cut, the meterstick swings down to where it is vertical for an instant before it swings back up in the other direction. What is the angular speed when the meterstick is vertical
In a graphing calculator, there are four AAA batteries, which together provide a potential difference of 1.5 V and a total of 6.0 W·h of energy. what was the average current through the calculator
The period of the orbit is 2.1 hours. The radius of the planet is 4.50 × 106 m. Illustrate what would be the true weight of the satellite if it were at rest on the planet’s surface?
A 150 MW laser pulse is focused with a lens to a diameter of 4.99 ?m. What is the laser beam's electric field amplitude at the focal point
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