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A object of mass m = 1.25 kilogram moves in a horizontal circle of radius r = 1.56 meter on a rough table. It is attached to a horizontal string fixed at the center of the circle. The speed of the object is initially 3.85 m/s. After completing one full trip around the circle, the speed of the object is 2.50 m/s. Determine the energy dissipated by friction during that one revolution in Joules.
Find what is the coefficient of kinetic friction?
Find how many more revolutions will the object be making before coming to rest?
a car sits in an entrance ramp to a freeway waiting for a break in the traffic. the driver sees a small gap between a
Washington D.C is roughly 3000 miles from San Francisco. When it is 8:00 a.m. in San Francisco, it is 11:00 a.m. in Washington D.C. Using this information, find the rotational speed of the surface of Earth
A 200 kg communications satellite is placed into a circularorbit around the Earth with a radius of 4.23 x 107m(26,000 miles). Find the gravitational force on the satellite
A passenger on a boat moving at 1.50 m/s on a still lake walks up a flight of stairs at a speed of 0.50 m/s. what is the velocity of the passenger relative to the water
Today's terrestrial background radiation is about 50 mrem/year, mainly due to the uranium and thorium decay chains, and potassium. The earliest evidence of life on earth was about 3.5 billion years ago.
Maddox takes off on his jet ski so they have a combined mass of 350.48kg. What is Maddox's top speed
Raw sewage is raised vertically by 5.49m in the amountof 1.89*106 liters each day. What is the power output of the shift station pump
The internal energy of a system changes becasue the system gains 176 J of heat and performs 312 J of work. During this return process, what work is involved
An iron bolt of mass 70.0 g hangs from a string 35.2 cm long. The top end of the string is fixed. Find the magnetic force on the bolt
You have a 1.91-m-long stretched string with a mass of 19.3 g. When you oscillate the string at 440 Hz, obtain the tension in the string
A 3.00 m long string sustains a three-loop standing wave pattern as shown. The wave speed is 1.00 * 10^2 m/s. what is the frequency of vibration? what is the lowest possible frequency for standing waves on this string?
a boat travels between three islands. it sails from the first island to the second 4.10 km away in a direction 37.0deg
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