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At a playground, a 19kg child plays on a slide that drops through a height of 2.3m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -361 J on the child. What is the childs speed at the bottom of the slide?
A clay ball (m=0.82 kg) is thrown at a metal target (M=1.72 kg) that is suspended from a cable. How far above its hanging location does the target swing
If you have 0.326 m^3 of water at 25 degrees celsius and add 0.127 m^3 of water at 95 degrees celsius; what is the final temperature of the mixture
Two generators use the same magnetic field and operate at the same frequency. Find the coil radius r of this other generator
For the two conducting balls as described in problem 1, when one ball is attached to a torsion balance the wire is twisted by a torsional angle of 1°. find the torsion constant of the wire
The lowest pedal note on a large pipe organ has a fundamental frequency of 16 Hz, What is the length of the open-closed pipe that makes that note
Water flows at a speed of 1.7 m/s throughout a horizontal pipe having a circular cross section 5 cm in diameter. The pipe widens to a diameter of 14 cm. Treat the water as an idea fluid.
In a typical game of squash, two people hit a soft rubber ball at a wall until they are about to drop due to dehydration and exhaustion. What will be the temperature increase of the ball after one bounce
A baseball is thrown at an angle of 27 degrees relative to the ground at a speed of 20.9m/s. The ball is caught 36.0231m from the thrower. The acceleration due to gravity is 9.81m/s square. Explain how long is it in the air ?
A uniform disk of mass 10 kg and radius 3.0 m can rotate without friction about its fixed center like a merry-go-round. What is the angular velocity of the two disks together about the center of the large disk after the small disk have moved
John is sitting ( at rest) at the top of a slide that is inclined 25 deg with respect to the horizontal. how much does the thermal energy increase during John's trip down the slide
The voltage across a resistor is equal to the product of the current through the resistor and the resistance of the resistor, What is the potential difference of the battery
An audio amplifier, represented by the AC source and the resistor R, what is the time-averaged power delivered to the speaker
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