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1. What do we mean when we say that an object is charged?
2. What do we mean when we say that the net charge is conserved in a closed system?
3. State Coulomb's law in your own words.
4. What is electric field intensity?
The human reaction at operating a stop watch
A rock is thrown straight upward.it leaves the throwers hand at a height 1.5m above the surface of the earht with a speed 1.5m/s. what maximum height will the rock reach
Simple distillation is a technique to purify a mixture of two liquids. Can we use the technique to distill pure ethanol from ethanol-water mixture? Explain your answer
A baseball is thrown from the roof of a 22.0 m tall building with an initial velocity of mag 12.0 m/s and directed at an angle of 53.1 degrees above the horizontal. (a) What is the speed of the ball just before it strikes the ground?
two players hit an air hockey puck simultaneously. one player hits the puck with a force 4.75 at an angle 23.9. the
In a double-slit experiment, two coherent wavelengths of light, 425 nm and 510 nm, illuminate the slits of separation is 1.75 mm and a screen located 5 m away from the double-slit system, the bright fringes of diffraction patterns from both light sou..
A beam of unpolarized light in air strikes a flat piece of glass at an angle of incidence 54.2 degrees. what is the index reflection of the glass
A 6.0cm tall object is placed 39cm in front of a spherical mirror. It is desired to produce a virtual image that is upright and 4.8cm tall
determine the r value for a wall constructed as follows the outside of the house consists of lapped wood shingles
A cart of mass M1 = 3 kg is attached to a block of mass M2 = 5 kg by a string that passes over a frictionless pulley. What is the work Wg done by gravity on the system
Big yellow fishing swimming at 2.0m/s swallows little green fish at rest. What fraction of big yellow fish's initial kinetic energy was lost is this collision
A force vector has a magnitude of 590 newtons and points at an angle 44o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
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