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two of angies friends are talking to each other at a distance of 30 m from where angie stands angie measures the sound
the vertical displacement of particles in a string when a wave is propagating through it is given by y 002 sin10t - 8x
a solenoid 100 cm in diameter and 774 cm long is made from copper wire of diameter 0100 cm with very thin insulation
a child is riding a merry-go-round which has an instantaneous angular speed of 125 rads and an angular acceleration of
the bohr model of the hydrogen atom pictures the electron as a tiny particle moving in a circular orbit about a
a player bounces a 045 kg soccer ball off her head changing the velocity of the ball from vector v i 86 msx -21 msy
if the pressure of the 12-cm3 volume is reduced to 30 times 1011 pa an extremely good vacuum while the temperature
a rectangular loop with dimensions 420cm by 950cm carries current i the current in the loop produces a magnetic field
an aluminum wire consists of the three segments current throughout 6a j119e6-------j276e6------j319e6 find the drift
a disk has a moment of inertia of 30e-4 kgm2 and rotates with an angular speed of 35 radsec what net torque must be
60 cm3 of gasoline are mixed with 50cm3 of water what is the average density of the mixture 55g of gasoline are mixed
an object is attached to the lower end of a 100-coil spring that is hanging from the ceiling the spring stretches by
a lawn mower of 25kg is pushed a horizontal distance of 10 m by 50n downward force directed 60 degrees to the
an 8-kg ball rolling at 2 ms when it bumps into a pillow and stops what is the
planet-x has a mass of 379times1024 kg and a radius of 5640 km what is the first cosmic speed ie the speed of a
a satellite in a circular orbit around the earth with a radius 1011 times the mean radius of the earth is hit by an
the picture below shows a model of a human leg with a heavy weight on the ankle it represents a person lying on his
a disc with a radius of 12cm and a mass of 4kg is free to rotate about an axle through its center a cord is wrapped
a 80-g bullet is fired from a rifle having a barrel 0582 m long choose the origin to be at the location where the
a satellite is in a circular orbit very close to the surface of a spherical planet the period of the orbit is 185 hours
magnus has reached the finals of a strength competition in the first round he has to pull a city bus as far as he can
a light spring with spring constant 1200 nm hangs from an elevated support from its lower end hangs a second light
a vertical straight wire carrying an upward 24-a current exerts an attractive force per unit length of on a second
what is the magnitude of the force per meter of length on a straight wire carrying an 620 current when perpendicular to
a vertical spring spring constant 175 nm is mounted on the floor a 0470-kg block is placed on top of the spring and