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1. If we could somehow pull one equivalent (one faraday) of positive charge in a small ball 10 cm away from one equivalent of negative charge, e.g., a mole of chloride ions, on another small ball, what would the force (in N) pulling the two balls towards each other be? How does this force compare to that exerted on the tracks by a 20 ton train locomotive on the Earth's surface due to the Earth's the gravitational force? (Imagine trying to hold the balls apart.)
2. Multiphoton laser ionization is a process in which a high power laser induces ionization of a molecule by causing it to absorb many identical photons at the same time and pool their energy to attain enough to reach the ionization potential, in other words enough to knock an electron completely off the molecule. The ionization potential of a nitrogen molecule is approximately 15.5 eV. What is the minimum number of photons from the beam of a 1054 nm high power laser that must be absorbed by a nitrogen molecule simultaneously to cause multi-photon ionization?
An object with a mass of m = 5.5 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.275 m and mass of M = 3.00 kg. compute the magnitude of the acceleration of the object
A long solenoid has a diameter of 12.0 cm. When a current i exists in its windings, Calculate the magnitude of the induced electric field at the following distances from the axis of the solenoid
The flywheel of a steam engine runs with a constant angular speed of 150 rev/min. When steam is shut off, the friction of the bearings stops the wheel in 2.7 h. (a) What is the constant angular acceleration, in revolutions per minute-squared, of t..
A thin rod (length is 1.50 m) is oriented vertically, with itsbottom end attactched to the floor by means of a frictionlesshinge. What is the angular velocity just before it strikes the floor
A satellite is placed into an earth orbit and passes 100miles above the ground as its closest point while moving at 18,000mph. What is the furthest it gets from the surface, and how fast is it traveling at that point?
a charged particle (q=1.6*10^-19C) enters a mass spectrometer with a speed of 2.5*10^6m/s, compute the mass of the charged particle
what is the linear speed of the fishing line. The force exerted by the wind on the sails of a sailboat is 300 N north. The water exerts a force of 150 N east. If the boat (including its crew) has a mass of 300 kg, what are the magnitude and directi..
A 12 kg block is moving horizontally across a frictionless surface with a constant velocity of 25 m/s, How far does the block move before it comes to a stop
a mass m 4.0kg is connected as shown by a light cord to a mass m 6.0kg which slides on a smooth horoizontal surface.
A pendulum of the length L is suspended from the ceiling of an elevator. When the elevator is at rest, the period of the pendulum is T. In instant when the pendulum reaches it's highest position the elevator starts the free fall. What is the period o..
The small spherical planet called "Glob" has a mass of 7.28 x 10^18 kg and a radius of 6.26 x 10^4 m. What was the initial speed of the rock
A 0.50 kilogram shuffleboard puck slides a distance of 3.0 meter on the board. find what work is done by the force of friction
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