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You are trying to lose weight by working out on a rowing machine. Each time you pull the rowing bar (which simulates the "oars") toward you, it moves a distance of 1.1 m in a time of 1.0 s. The readout on the display indicates that the average power you are producing is 82 W. What is the magnitude of the force that you exert on the handle?
Two horizontal forces, 218 N and 157 N, are exerted in opposite directions on a crate. What is the net horizontal force on the create? Be sure to indicate the direction of the net force. (Assume that the 218 N forces are in the positive direction.)
When light with a wavelength of 228 nm is incident on a certain metal surface, Determine the wavelength of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface
A flask is filled with 1.53 L (L = liter) of a liquid at 90.7 °C. When the liquid is cooled to 16.5 °C, find the coefficient of volume expansion of the liquid
After crossing the finish line, the marathon runner stops, and then performs a celebratory vertical jump. what was the avg. force of the vertical ground reaction force
Consider a binary separator used to separate aluminum cans from glass. A total mass of 0.8 tonne/hr enters. what is the recovery of aluminum
A rock is dropped off the side of a bridge and hits the water below 7.5 s later. What was the rock's velocity when it hit the water
Refer to Interactive Solution 19.25 to review one way in which this problem can be solved, What is the distance of closest approach
Make use of the data in appendix B to determine how much the volume of the water will change. For a tank diameter of 2 ft, would the corresponding change in water depth be very noticeable
A uniform disk of radius R and mass M is mounted on an axle supported in fixed frictionless bearings. find the angular acceleration and tangential acceleration
In a 261-turn automobile alternator, the magnetic flux in each turn is ?B = (2.62E-4 T*m2) cos(?t), determine the maximum emf in the alternator
A block of unknown mass is attached to a spring of spring constant 6.1 N/m and undergoes simple harmonic motion with an amplitude of 9.5 cm. Calculate the mass of the block
Explain the spacing between allowed vibrational energy levels
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