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The drawing shows a skateboarder moving at 5 m/s along a horizontal section of a track that is slanted upward by 48° above the horizontal at its end, which is0.46 m above the ground. When she leavesthe track, she follows the characteristic path of projectile motion. Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track.
calculate the speed of the block at the instant the dielectric leaves the capacitor assuming it starts at rest and that the voltage across the capacitor after the dielectric is removed is measured to be 900 V.
a plate carries a charge of -2.6 microc while a rod carries a charge of 2.4 microc. how many electrons must be
A block of wood (Mblock = 5.2 kg) rests on a horizontal surface for which the coefficient of kinetic friction is 0.32. find the initial velocity of the bullet before impact
A vector has components of 7.0 units along the x axis and 9.0 units along the y axis. What is the angle between the vector and the x axis
1) Find the net force acting on particle 3 due to the presence of the other two particles. Report you answer as a magnitude and a direction measured from the positive x axis.
an air bubble has a volume of 1.20 cm3 when it is released by a submarine 115 m below the surface of a lake. what is
a 4-g bullet is fired into a 1.5-kg block that is resting on a frictionless surface and is attached to a spring with
An experiment measures the temperature of a 270 substance while steadily supplying heat to it. The results of the experiment show. What are (a) specific heat of the liquid phase and (b) the heat of vaporization.
One end of an iron poker is placed in a fire where the temperature is 495°C, and the other end is kept at a temperature of 27°C. The poker is 1.2 m long and has a radius of 5.0 multiplied by 10-3 m. Ignoring the heat lost along the length of the p..
In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles, What is the magnitude of Betty's force
two identical charges are fixed to diagonally opposite corners of a square 0.5m on the side. each charge is 3x10-9c how
A 75 kg student runs at 5 m/s, grabs a rope,and swings out over a lake, he release the rope when his velocityis zero. What was his velocity when he hit the water
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