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An alpha particle (the nucleus of a helium atom, with charge +2 and a mass four times that of a proton) and an antiproton (which has the same mass as a proton but charge -) are released from rest a great distance apart. They are oppositely charged, so each accelerates toward the other.
Part A: What is the speed of the alpha particle when the particles are 1.6 nm apart?
Part B: What is the speed of the antiproton when the particles are 1.6 nm apart?
A sledge loaded with bricks has a total mass of 17.4 kg and is pulled at constant speed by a rope inclined at 20.4° above the horizontal. How much work is done by the rope on the sledge
The battery charger for an MP3 player contains a step-down transformer with a turns ratio of 1:27, What voltage does the secondary coil of the transformer provide
A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. The tension in the wires is the equal, and they have the same mass.
Use the blackbody radiation law to estimate the wavelength of maximum intensity for the light from the sun's photoshere
Heat is another word for thermal energy. Dissimilar materials at the same temperature can contain different amounts of heat.
An electric motor with a power of 3W is used to lift a .2 kg mass a height of 0.5 meters in 3.0 seconds, since total energy must be conserved
Brewed coffee is often too hot to drink right away. You can cool it with an ice cube, but this dilutes it. what is the final temperature of the coffee
A small object of mass 2.00×10?2kg and charge 3.0uC hangs from the ceiling by a thread. obtain the tension in the thread
A 8.00?F parallel-plate capacitor with circular plates is connected to a 11.0V battery. How much charge would be on the plates if their separation were doubled while the capacitor remained connected to the battery
A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.55Hz, Ignoring the mass of the spring, what is the mass m of the fish
In a ballistics test, a 22.0g bullet traveling horizontally at 1300m/s goes through a 30.0cm -thick 350kg stationary target and emerges with a speed of 900m/s, How long is the bullet in the target
A rectangular billboard in space has the dimensions 10 meters by 20 meters. How fast and in what direction with respect to the billboard would a space traveler have to pass for the billboard to appear square?
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