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Two ants race across a table 66 cm long. One travels at4.42 cm/s and the other at 3cm/s. When the first one crosses thefinish line, how far behind is the second one? Answer in units of cm.
When the power is turned off on a turntable spinning at 82.0 rpm, you find that it takes 10.8 revolutions for it to stop while slowing down at a uniform rate. How long does it take to stop after the power is turned off
An extreme skier, starting from rest, coasts down a mountain that makes an angle of 34.2 ° with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.156. She coasts for a distance of 17.0 m before coming to the edge ..
An AC power generator produces51A (rms) at 3600 V. The voltage is stepped up to 100000 V by an ideal transformer, What percentage of the power delivered by the generator
Four masses M in deep space are connected by four identical light springs with spring constant k and equilibrium length L. What is the kinetic energy of this system
a 150g of aluminum at an initial temperature of 100 c is placed in 1.00 kg of water at 20.0c What is the final temperature of the mixture
One mole of a ideal gas initially at temp To=0C undergoes an expansion at a constant pressure of 1atm to four times it original volume
A certain medical machine emits x-rays with a minimum wavelength of 0.025 nm. One day, the machine has an electrical problem and the voltage applied to the x-ray tube decreases to 80 percent of its normal value. Now what is the minimum x-ray wavel..
Iron atoms have been detected in the sun's atmosphere, some with many of their electrons stripped away. What is the net electric charge (in coulombs) of an iron atom
A proton in the upper atmosphere moves at 8.6×105m/s , perpendicular to Earth's magnetic field, Find the curvature radius of the proton's trajectory
A 2 cm long section of the patellar ligament stretches to 2.002 cm when it is subjected to a tensile force of 10,000 N. What is the strain in this segment of ligament
A car rounds a 1.15 radius circular track at 82 Find the magnitude of the car's average acceleration after it has completed one-fourth of the circle.
The coil is in a uniform magnetic field that is perpendicular to the plane of the coil. Illustrate what rate of change of the magnetic field strength will induce a current of 4.98 A in the coil?
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