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Two ice skaters, with masses of 50.0kgand 85.0kg, are at the center of a 60.0m-diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink.
If the heavier skater reaches the edge in 20.0 s , how long does the lighter skater take to reach the edge?
A golf ball of mass 50 g released from a height 1.5m above a concrete floor bounces back to a height of 1.0 m. What is the amount of energy lost during the impact
A block of 3 kg is sitting at rest on an incline of 10 degrees. Use the impulse-momentum approach to calculate how long the block will continue to slide before it comes to a stop on the incline
electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. the electric field at a point
A spherical surface completely surrounds a collection of charges. Find the electric flux (with its sign) through the surface if the collection consists of (a) a single +1.90 × 10-6 C charge, (b) a single -2.40 × 10-6 C charge, and (c) both of the ..
Tarzan, with a mass of 80.0 kg, wants to swing across a ravine on a vine, but the cliff on the far side of the ravine is 0.900 m higher than the cliff where Tarzan is now, How fast is Tarzan going at the bottom of his swing
a flat sheet of paper of area 0.150 m2 is oriented so that the normal to the sheet is at an angle of 50deg to a uniform
In a photoelectric experiment, light with a wavelength of 250 nm hits a certain material. When a negative potential of 0.48 volt is applied there is no more current while a saturation current Is is recorded at positive voltages.
A particle known as a pion lives for a short time before breaking apart into other particles. Assume it is moving at a speed of 0.980c, and an observer who is stationary in a laboratory measures the particle's lifetime to be 5.00*10-8 s.
An ac generator with maximum electromotive force = 240 Voperating at 420 Hz causes oscillations in a series RLC circuithaving R = 230 Ohms, L = 150 mH, and C = 24.0 microF. Find the current amplitude I
John's mass on the Earth is 65 kg. What are his metric mass and weight on Mars where g=3.72m/s^2
Two stars, with masses m1 and m2 that are initially very far apart and at rest (and even farther from any other stars) are pulled together by their gravitational attraction. Determine their relative speed when they are a distance d apart from one ano..
suppose a stone is thrown upward with an initial velocity of 44 ft per second and is released 4 ft above the ground.
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