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A positive charge, Q = 45 is placed on the x-axis at x = -1.9 cm. A positive charge which is twice as large is brought from infinity to a point x = +1.9 cm on the x-axis. The mass of each charge is 0.3 g. a)How much energy does it take to assemble these two charges? b)If you release the two charges simultaneously, what would be the speed of the 45 charge at infinity? c)f you release the two charges simultaneously, what would be the speed of the 2*(45) charge at infinity?
A rock thrown with speed 10.5 and launch angle 30.0(above the horizontal) travels a horizontal distance of = 18.0before hitting the ground. Find the height (yi) from which the rock was launched
A juggling bag is thrown straight up into the air and is caught 3 s later, What is the initial velocity of the bag
Light from a monochromatic source shines through a double slit onto a screen 5.0 m away, What is the wavelength of the incident light
the light intensity incident on a metallic surface with a work function of 1.17eV produces photoelectrons with maximum kinetic energy of 4.17eV. what is the maximum kinetic energy of the photoelectrons
An iron bar of mass, 0.73 kg, slides down a frictionless incline 0.91 m high. find the speed of the combined masses after collision
A bullet shot straight up into the air returns to it's starting point in 10 seconds. What is the initial speed of the bullet
A horizontal wire of length 0.58 m, carrying a current of 7.2 A, is placed in a uniform external magnetic field, Determine the magnitude of the external magnetic field
An energy of 28.0 eV is required to ionize a molecule of the gas inside a Geiger tube, What maximum number of ion pairs can it create
determine the time the inhabitants of alpha station. A woman who weighs 600N at earth's surface stands on top of a very tall ladder so she is one earth radius above earth's surface. how much does she weigh.
A 4 ohm resistor and 10 ohm resistor are connected in series. how much current will flow through the circuit
at the surface of the earth what is the force on the rocket due to gravity when the rocket has reached an altitude of 1.2 x 104 km
A slab of marble is resting on the ground. It weighs 600 N and has the dimensions 0.1m x 0.2m x 1.0m. What is the greatest pressure that the slab can exert on ground.
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