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a baseball m 145 gram approaches a bat horizontally at a speed of 391 ms 87 miles per hour and is hit straight back at
two point charges q and -q are on the x axis by coordinates a and -a respectively discover a total force of a point
a firm wants to estimate the amount of frictional torque in the incurrent line of grindstones so they can redesign them
a 24 volt battery is connected in series with a resistor and an inductor with r 70 ohm and l 10 h respectively obtain
a certain rain cloud at an altitude of 190 kilometer contains 320 x 107 kilogram of water vapor determine how long
a 220g block hangs from a spring with spring constant 14nm at t0s the block is 27cm below the equilibrium point and
a 640 kilogram man stands on a lightweight diving board supported by two pillars one at the end of the board the other
a man starts form rest at the top of a frictionless spherical surface and slides into water before find at what angle
a particle is moving in two dimensions such that in cartesian coordinatesx a2at - sinaty a1 - cosatwhere a and a are
research suggests that the electric fields in some thunderstorm clouds can be on the order of 10 knc compute the
starting from rest a basketball rolls from the top of a hill to the bottom reaching a translational speed of 66 ms
a 30 kilogram object moves to the right with a speed of 20 ms it collides in a perfectly elastic collision with a 60
two speakers one directly behind the other are each generating a 340 hz sound wave the speakers are being driven out of
two children hang by their hands from the same tree branch the branch is straight and grows out from the tree trunk at
a 1450 kilogram car is traveling with a speed of 12 ms on a frictionless horizontal surface until it encounters a
two charged particles are separated by 1 m the electric force on each one from the other one is 1 n if the charges are
discover the magnitudes and the directions of the electric fields required to counteract the weight of an election and
an astronaut is traveling in a space vehicle that has a speed of 0520c relative to earth the astronaut measures his
a screw threaded into a blind hole often traps air that can become a virtual leak in the vacuum system consider a
red shift consider a neutron star with a mass 28 x 1030 kg and a radius of 104 m now suppose a photon by initial
a spaceship travels in a circular orbit around a planet it applies abrupt thrust and increases its speed by a factor f
a positive charge of 30 muc is pulled on by two negative charges one -20 muc is 0050 m to the north and the other -40
a drop is falling in a millikan oil-drop apparatus when the electric field is off1 what are the forces acting on the
you are probing the field of a charge of unknown magnitude and sign you first map the field by a 10 x 10-6 c test
how many coulombs of charge are on the electrons in a nickel utilize the following method to find the answer1 discover