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an airplane is flying through a thundercloud at a height of 1600 m flying at this height is very dangerous because of
two point charges each have a value of 300 mc and are separated by a distance of 400 cm what is the electric field
a gas increases in pressure from 200 atm to 600 atm at a constant volume of 100 m3 and then expands at constant
a spaceship travels with a speed of 03 c as it passes by the earth on its way to a distant star as shown in the diagram
create your own 2d kinematics problem and present a detailed solution that includes a sketch the problem must begin and
in the future an astronaut weighing 882 newtons on earth may stand on a new moon and weigh themselves to find they now
a spherical satellite with a radius of 75m is spinning over its own axis with an angular speed of 232rads the satellite
a transformer can be used to step-up or step-down voltage since the power must be constant the current will decrease in
a man with a mass of 100kg is standing on a uniform plank of mass 50kg the man is standing directly above the right
as seen from above a playground carousel is rotating counterclockwise about its center on frictionless bearings a
a square steel plate is 02 m on a side and 4 mm thicka find the shear strain that results if a force of magnitude 8x104
a cube of copper with each edge having the dimension 127 mm is put in a vise and squeezed by a force of 215 n exerted
a solid uniform sphere starts from rest and is rolled down a 50m high hill the first half of the hill is rough and
a ball with mass 25kg is moving in outer space with a velocity of 60 ms horizontally and a box of mass 45kg is moving
you are standing on a bridge that is 500 m above a dried up riverbed attached to your feet is a 300m long bungee cord
find the center of mass of a uniform density cone give your answer as a distance from the cone point and as a fraction
derive an expression for spring potential energy us where the spring force is fs -kx and delta u -wc where wc is the
a car starts from rest and moves with an acceleration of 1ms for 1s the motor is then turned off and the car is allowed
an 80kg painter climbs a 245m ladder that is at an angle of 25 degrees with a vertical wall what is the work done by
a block mass 20 kg is hanging from a massless cord that is wrapped around a pulley moment of inertia 11 10-3 kg
a proton is at the origin and an electron is at the point x063nm y-045nm find the magnitude of electric force on the
a solid cylindrical disk has a radius of 015 m it is mounted to an axle that is perpendicular to the circular end of
in a certain region the earths magnetic field has a magnitude of 48 x 10-5 t and is directed north at an angle of 66deg
each of the four circuits in the drawing consists of a single resistor whose resistance is either r or 2r and a single
a 6037-w space heater is designed for operation in germany where household electrical outlets supply 230 v rms service