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Q. A 16.4 kg wagon is pulled along the level ground by a rope inclined at 22.8° above the horizontal. A friction force of 27.7 N opposes the motion. How large is the pulling force it the wagon is moving with a constant speed?
Q. An electron is accelerated by a constant elec-tric field of magnitude 202 N/C.Find the magnitude of the acceleration of the electron.Answer in units of m/s2.
calculate the total mechanical energy of the glider at any point in its motion. Calculate the maximum speed of glider.
How to find the length
Find the distance from the mirror to the point where the reflected rays meet.
An atomic nucleus of mass 288 u moving at 405m/s emits an alpha particle of mass 4.0 u in the direction of its velocity. If the remaining nucleus slows to 360m/s, what velocity does the alpha particle have when it is emitted.
A good baseball pitcher can throw a baseball toward home plate at 91 miles per hour with a spin of 1789 revolutions per minute. How many revolutions does baseball make on its way to home plate? For simplicity, assume that the 60.0 ft path is a straig..
What is electric field in the wire
A horizontal ray of light falls on a vertical plane mirror free to turn about the horizontal axis. If the mirror turns through 20o, by what angle does the reflected ray turn.
A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. The tension in the wires is the equal, and they have the same mass.
What was the speed of the car when the brakes were applied.
Determine the location at which the tuning is formed and the vibrating frequency of a string to form a standing wave pattern.
find out the magnitude of their acceleration. If the blocks move determine the magnitude of the tension in the string. If the blocks do not move determine the sum of magnitude of the forces of friction acting on the blocks. Show all the work.
When G was first measured by Henry Cavendish, newspapers of the time hailed his experiment as "weighing Earth experiment." And Why.
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