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A child, hunting for his favorite wooden horse, is running on the ground around the edge of a stationary merry-go-round. The angular speed of the child has a constant value of 0.291 rad/s. At the instant the child spots the horse, one-quarter of a turn away, the merry-go-round begins to move (in the direction the child is running) with a constant angular acceleration of 0.0124 rad/s2. Find the shortest time it takes for the child to catch up with the horse?
A cup of water is heated with a heating coil that delivers 27.28W of heat. What is the mass of the water
A dielectric-filled parallel-plate capacitor has plate area = 30.0cm^2 , plate separation = 5.00mm and dielectric constant = 5.00. The capacitor is connected to a battery that creates a constant voltage = 10V.
You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between your feet and the ice. what is your speed after the collision
Point charges of 30.0 µC and 49.0 µC are located 0.500 meter apart. Obtain what are the magnitude and direction of the net electric field halfway between them
Tarzan swings on a 34.0-m-long vine initially inclined at an angle of 31.0° with the vertical, What is his speed at the bottom of the swing if he starts from rest
In the above problem, if the radius of the circular loop expands to 1.0m in 2 seconds, calculate the EMF and the direction of the current in the loop
q1. the bottom of a box has a surface area of 2.50 m2. the mass of the box is 51.5 kg. acceleration because of gravity
question1a projectile that is fired up from a gun has an initial velocity of 94.0 kmh at an angle of 57.0deg above the
A Carnot engine operating between a warmer unknown temperature and a reservoir of boiling helium at 1.76 K has an efficiency of 59% What is the warmer temperature
A cannonball is dropped from the top of a building. If the point of release is 44.8 m above the ground, what is the speed of the cannonball
a copper wire has a circular cross section with a radius of 5.00 mm. the equation for drift velocity is given below. vd
A proton enters a uniform 0.2T magnetic field at right angles. What is the frequency of the proton's subsequent circular orbit
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