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A blue ball is thrown upward with an initial speed of 22.2 m/s, from a height of 0.6 meters above the ground. 2.7 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 6 m/s from a height of 26.7 meters above the ground. The force of gravity due to the earth results in the balls each is having a constant downward acceleration of 9.81 m/s2.
How long after the blue ball is thrown are the two balls in the air at the same height?
A point particle travels in a straight line at constant speed, and the closest distance it comes to the origin of coordinates is a distance L. By respect to this origin, does the particle have a nonzero angular momentum? As the particle moves along i..
you put 1kg of water at 1 degree celsius together with 0.5kg of steam at 100 degrees celsius what will the final
the center of mass of a proton with mass 1.673middot10-27 kg and alpha particle with mass 6.645middot10-27 kg is moving
a parallel-plate capacitor with only air between the plates is charged by connecting it to a battery. the capacitor is
four point charges q are fixed to the four corners of a square that is 10.2 cm on a side. an electron is suspended
A beam contains 3.6 x 105 doubly charged positive ions per cubic centimeter, all of which are moving north with a speed of 5.3 x 105 m/s. Find what is the magnitude of the current density
Sam walks 0.40 kilometer in a direction 60.0o west of north, then goes 0.50 kilometer due west. Determine what is his displacement
The radar system at an airport broadcasts 15 GHz with 150 kW. An approaching airplane with a 34 m^2 cross section is 24km away. Assume that the radar broadcasts uniformly in all directions and that the airplane scatters microwaves uniformly in all di..
A cardboard box weighing 165 Newton is resting on a marble floor. If the coefficient of friction between cardboard and smooth marble is .20, find how much force would it take to keep the box sliding
A person pushes horizontally with a force of 170 N on a 60 kg crateto move it across a level floor. The coefficient of kineticfriction is 0.25. (a) What is the magnitude of the frictionalforce? (b) What is the magnitude of the crate'sacceleration?
A wheel that is rotating at 45 Rad/s is give an angular acceleration of 3 Rad/s (sqrd). Use gravity: 10 m/s, how long is the angular velocity of the wheel
When the temperature of a coin is raised by 83.1 C°, the coin's diameter increases by 2.60 x 10-5 m. If the original diameter is 1.61 x 10-2 m, find the coefficient of linear expansion.
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