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A golf ball is dropped from rest from a height of 9.70 m. It hits the pavement, then bounces back up, rising just 6.50 m before falling back down again. A boy then catches the ball when it is 1.50 m above the pavement. Ignoring air resistance, calculate the total amount of time that the ball is in the air, from drop to catch.
Consider a particle of mass m moving in a vertical x-y plane along a curve y=acos(2xπ/λ). free fall acceleration is g. First consider two coordinates x and y:
A copper-bottomed kettle, its bottom 24 centimeter in diameter and 3.0 millimeter thick, sits on a burner. find the temperature of the bottom surface of the kettle
A uniform disk with a mass of 0.767kg and radius 15.1cm is rotating on frictionless bearings with an angular speed of 22.4hz when jill drops a 0.174kg clod of clay on a point 8.78cm from the center of the disk, where it sticks. What is the new angula..
A 0.940 kg block slides on a frictionless horizontal surface with aspeed of 1.70 m/s. The bock encounters an unstretched springwith a force constant of 260 N/m. Find the total time ofcontact with the spring before the block comes to rest.
a charged material causes the deflection of a positively charged electroscope to increase. does the charged material
In Stanford University's Linear Accelerator Machine, electrons are accelerated to a kinetic energy of 50 billion eV. The electron path in the accelerator is 3 km. The speed of these electrons turns out to be about 1.6 cm/s slower than speed of light.
What is the energy density in the electric field at the surface of a 2.00-cm-diameter sphere charged to a potential of 2000V
A 66 trampoline artist jumps vertcally upward from the top of a platform with a speed of 5.4 . A) What is his speed as he lands on the trampoline, 3 m below his jump off point? B) If the trampoline behaves like a spring with spring stiffness constant..
An electromagnetic wave has an electric field amplitude of 325 V/m. What is the maximum magnitude of the Poynting vector of this wave
A 5439 N car traveling at 52m/s up an incline that is at an angle of 5.0 degrees about the horizontal, brakes, coming to rest in 124m. What is the braking force
how much work would it take to rotate a 10 cm diameter loop carrying 25 a of current with a normal vector oriented 30
A heat transfer of 9.1 ? 105 J is required to convert a block of ice at -13°C to water at 13°C. What was the mass of the block of ice
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