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at the local playground a boy on a swing has a speed of 306 ms when the swing is at its lowest point find to what
a person pushes a 140 kilogram lawn mower at constant speed with a force of 850 newton directed along the handle which
a grinding wheel in the shape of a solid disk is 0260 meter in diameter and has a mass of 250 kilogram the wheel is
a thin spherical shell of mass 0450 kilogram and diameter 0230 meter is filled with alcohol rho 806 kgm3 it is then
the energy equivalent of one gallon of gasoline is 13 times 108 joule a compact car has a mass of 836 kilogram and its
when a rattlesnake strikes its head accelerates from rest to a speed of 27 ms in 035 second assume for simplicity that
a rectangular loop with sides of length a 200 centimeter and b 410 centimeter is located near a wire that carries a
assume that the build-up of fatty tissue on the wall of an artery decreased the radius by 10 percent determine by how
in a hydraulic garage lift the small piston has a radius of 50 centimeter and the large piston has a radius of 15
a certain fm radio tuning circuit has a fixed capacitor of 870 pf determine what range of values must the inductance
a neutron in a reactor makes an elastic collision head on with a boron atom that is initially at rest the mass of the
a sample of blood is located in a centrifuge of radius 150 centimeter the mass of a red corpuscle is 30 x 10-16
a learner sits on a rotating stool holding two 30 kilogram objects when his arms are extended horizontally the objects
a cylindrical storage tank has a radius of 146 meter when filled to a height of 356 meter it holds 13800 kilogram of a
a 70 centimeter diameter horizontal pipe gradually narrows to 56 centimeter when water flows through this pipe at a
a 6-turn coil 19 centimeter in diameter is rotated at 17revs about an axis perpendicular to a uniform magnetic field a
a pendulum consists of a small object of mass 29 kilogram hanging at the end of a 20 meter long light string that is
a pendulum consists of a 10 kilogram mass swinging from a 10 meter long rope the pendulum is set swinging so that its
a 650 kilogram elevator starts from rest it moves upward for 35 second with constant acceleration until it reaches it
an electric fan is turned off and its angular velocity decreases uniformly from 500 revmin to 200 revmin in 400 second
it takes 4186 joule of energy to raise the temperature of 1 gram of water by 1oc determine how fast would a cricket
a spherical weather balloon is filled with hydrogen until its radius is 340 meter its total mass including the
a rubber ball has a diameter of 297 centimeter and a mass of 06000 determine what force is required to hold the ball in
a series circuit contains a 300 h inductor a 280 microf capacitor and a 400 ohm resistor connected to a 120 volt rms
a 015 kilogram billiard ball whose radius is 29 centimeter is given a sharp blow by a cue stick the applied force is