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Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high speed on his skateboard, would collide with some object. In this way, he got a gut feel for the physical properties of collisions and succeeded in combining his two passions.* On one occasion, the Skate, with a mass of 131 kg, including his armor, hurled himself against a 819-kg stationary statue of Isaac Newton in a perfectly elastic linear collision. As a result, Isaac started moving at 1.65 m/s and Nate bounced backward. What were Nate\'s speeds immediately before and after the collision? (Enter positive numbers.) Ignore friction with the ground.
A beam of particles is directed at a 0.017-kg tumor. There are 2.1x10^10 particles per second reaching the tumor, Find the biologically equivalent dose given to the tumor in 19s
What is the electric potential energy of the system? (Take as zero the potential energy of the three charges when they are infinitely far apart.)" Use = 8.85 10 12 for the permittivity of free space.
23g of copper pellets are removed from a 300?C oven and immediately dropped into 70mL of water at 23?C in an insulated cup
Two radio-frequency point sources separated by 2.0 m are radiating in phase with ? = 1.00 m. find how many maxima it detects
If a toaster is plugged into a source of alternating voltage with an rms value of 67 V, an rms current of 3.06 A occurs in the heating element. What is the average power input to the toaster
A pulley of mass 1.6 kg and radius 3.8 cm holds 2 masses: mass of A= 4.2 kg and mass of B= 7.0 kg, what is the acceleration of the system
A 2.0-kg solid cylinder of radius 0.5 m rotates at a rate of 40 rad/s about its cylindrical axis. What power is required to bring the cylinder to rest in 10 s
A 111g Frisbee is 25cm in diameter and has half its mass spread uniformly in the disk and the other half concentrated in the rim. What is the Frisbee's rotational inertia
A typical wall outlet voltage is 120 volts in the United States. calculate the number of turns on the secondary coil of the adapter transformer
Assuming that the total energy consumption scales in the same way as BMR, how many Calories are needed by the person weighing 150 lb
The car accelerates uniformly to a speed of 2.05 m/s in 13.0 s and then continues at constant velocity.
Suppose after charging a 2.5 µF capacitor to 9 V, you connect it to the second uncharged capacitor of 14 µF. What voltage will your voltmeter read across the second capacitor
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