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1) At the low point in it swing, a pendulum bob with a mass of 0.46 kg has a velocity of 2.2 m/s.
(a.) What is its kinetic energy at the low point?
(b.) Ignoring air resistance, how high will the bob swing above the low point before reversing direction? p
You are at a rock concert and find that when you stand 15 m from a speaker, the intensity is so high that it hurts your ears. how far from the speaker should you stand
A horse canters away from its trainer in a straight line, moving 130 m away in 10.0 s. It then turns abruptly and gallops halfway back in 5.3 s. find its average velocity for the entire trip, using "away from the trainer" as the positive direction..
A barefoot field-goal kicker imparts a speed of 26 m/s to a football at first at rest. If the football has a mass of 0.24 kg and the If the football has the mass of 0.24 kg and the time of contact with the ball is 0.037 s, what is the force exerte..
A simple circuit consists of a light bulb connected to the terminals of a battery. Determine the resistance and power of the bulb
An observation satellite orbits the planet at a height of 1000 . What is the projectile's speed as it passes the satellite?
At one instant a bicyclist is 49.0 m due east of a park's flagpole, going due south with a speed of 14m/s. Then 35.0 s later, the cyclist is 49.0 m due north of the flagpole, going due east with a speed of 14m/s.
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. The volume of the rock is 3.40 10-4 m3 and its mass is 3.87 kg. What percentage of the rock is gold by mass
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How many kilograms of water at 100 degrees Celsius can be converted to steam by the addition of 1.13X10^7 joules of thermal energy.
A skateboarder shoots off a ramp with a velocity of 5.7 m/s, directed at an angle of 53° above the horizontal. how far is this point horizontally from the end of the ramp
Use Ampere's Law to find the magnetic field due to an infinitely long wire of radius R carrying a current I. Find the magnetic field both inside and outside the wire
An electron is accelerated horizontally from rest in a television tube by a potential difference of 25,000 V. At what angle will the electron be traveling after it passes between the plates
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