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The particles in the nucleus of an atom are approximately 1.00×10?15 apart, while the electrons in an atom are about 1.00×10?10 from the nucleus.
Part A: Calculate the electrical repulsion between two protons in a nucleus if they are 1.45×10?15 apart.
Part B: How many pounds would the force be?
Part C: Calculate the electrical attraction that a proton in a nucleus exerts on an orbiting electron if the two particles are 1.28×10?10 apart.
An electric motor turns a flywheel by a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel. The flywheel is a solid disk with a mass of 50.0kg and a diameter of 1.00m.
Three pucks have masses m1=100g, m2=125g, and m3=150g. The pucks with masses m1 and ms move with velocities v1=4.00m/s in the negative-y direction, what is the angular momentum of the system
A bullet of massm = 15 g and velocity 260 m/s is shot into a block of wood that is firmly attached to the ground. What was the acceleration of the bullet
A electric wire with 3.85A current is placed in a magnetic field of strength .97T. What is the force on the wire
A uniform plank of length 5 m and weight 231 N rests horizontally on two supports, with d = 1.43 m of the plank hanging over the right support. To what distance, x, can a person who weighs 446 N walk on the overhanging part of the plank before it ..
A magnetic field of 3 Tesla is oriented into the page. A 10 cm long conducting bar is pulled to the right at a constant speed of 3.4 m/s. What is the magnitude of the current in the bar
A 251 kg wooden raft floats on a lake. When a 70kg man stands on the raft, it sinks 4cm deeper into the water. When he steps off, the raft vibrates for a while.
A person takes a trip, driving with a constant speed 90 km/h except for a 15 minute rest stop. If the person's average speed is 45 km/h, how far does the person travel
A stationary block of mass M - m is struck by a bullet of mass m traveling at speed v0. During the impact, obtain the speed of the block
Sheena can row a boat at 3.03 mi/h in still water. She needs to cross a river that is 1.10 mi wide with a current flowing at 1.55 mi/h. How long does it take her to cross the river
Two identical capacitors store different amounts of energy: capacitor A stores 2.7 x 10-3 J, Find the voltage across the plates of capacitor A
A geostationary communications satellite orbits the earth directly above the equator at an altitude of 35,800 km. Calculate the time it takes for a signal to travel from a point on the equator to the satellite
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