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A beaker of water rests on an electronic balance that reads 999.0 g. A 2.2 cm-diameter solid copper ball attached to a string is submerged in the water, but does not touch the bottom. Tension in the string is 0.43 N. What is the new balance reading?
a flashlight beam is emitted 7.53 cm beneath the still surface of the ocean by a scuba diver and strikes the surface
Charges +Q and +3Q are separated by a distance 2m. Find the location and value of the third charge in terms of Q
A 0.145- kg baseball traveling 36.10 m/s is stopped in 0.143 s by a catcher's mitt. What is the average acceleration of the ball
Suppose a satellite is in a circular orbit 5.175 Earth radii above the surface of the Earth, By how much does it have to increase its speed
the resistance of a wire increases 3.9 when the temperature of the wire is raised 100degc. what is the temperature
The turntable of a record player has an angular speed of 9.7
A car weighing 1.09 104 N is at rest on a 30.5° incline. Each wheel bears an equal part of the car's weight. Find the frictional force exerted by the road on each wheel
A mass of 2.0 Kg hangs from a spring with a force constant of 50 N/m. What is the amplitude of the resulting oscillations
A battery with an emf of 12.0 V shows a terminal voltage of 11.0V when operating in a circuit with two lightbulbs rated, What is the battery's internal resistance
a brother and sister are playing in the woods when suddenly the brother realizes that they are separated. the last
Determine the rebound angle ? if the coefficient of restitution for the impact of the ball with the floor is 0.4.
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. What is the work done on the jet by the catapult
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