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Question: 1. What are the fundamental quantities in mechanics?
2. What are the chosen units for the three fundamental quantities in the SI system, what are them in the British system ?
3. What is the current standard for each of the three fundamental units in the SI system?
4. Kinetic energy is defined a E= ½ mv2, where m is the mass of the object and v its speed. What are the SI units of energy?
5. What are the units of energy in the cgs system (a system where the three fundamental units are centime, gram, and second.
Assume the Earth contains roughly the same amount of the neutrons and protons. Estimate The number of protons in Earth. The charge Earth would have if all its electrons were removed
A rocket traveling at 0.540c sets out for the star, which is 5.45ly away from earth. It will return to earth immediately after reaching the star. According to the rocket crew how far will the rocket travel
A 0.498 kg air cart is attached to a spring and allowed to oscillate. Calculate the maximum kinetic energy of the cart
A solenoid has a cross-sectional area of 7.0 x 10-4 m2, consists of 430 turns per meter, and carries a current of 0.52 A. Find the average current induced in the coil
Though sunlight varies with season and time of day, solar energy falls on United States at an average intensity of 200. Assuming you live in an average location, what total solar-cell area would you need to provide all of your energy needs with en..
a small dog sits 3.0 m in front of a plane mirror. where is the dog's image in relation to the mirror
Find the general solution R(r) to the radial Schrodinger equation for r r0. Use the fact that the wave function must be finite at 0 and infinity to simplify the solution as much as possible. (You do not have to normalize the solutions)
A two-slit pattern is viewed on a screen 1.10 m from the slits. If the two third-order minima are 21.0 cm apart, what is the width of the central bright fringe
A 100kg mass is on an inclined plane of 30 degrees. It's connected to a second unknown mass that hangs over a frictionless pulley. What is the unknown mass required to maintain an acceleration down the place of 1m per sec
Calculate the displacement and velocity at times of 0.500, 1.00, 1.50, 2.00 and 2.50 s for a rock thrown straight down with an initial velocity of 11.2 m/s from the Verrazano Narrows Bridge in New York City
If in joule's paddlewheel experiment a block of mass 10 kilogram is allowed to fall through 22.5 m and the mass of the water is 50 g. Determine the total increase in temperature of the water
An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel, Find the tension in the lower (slack) segment of the belt
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