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Let's say that you have a mass of 45.0 kg, and that you run up a staircase as fast as you can, taking a time of 2.40 s to you raise yourself through a height of 3.00 meters. Use g = 9.80 m/s2, and neglect all other forces aside from the force of gravity. What is your power output during this process?
A slingshot will shoot a 10-g pebble 22.0 m straight up. With the same potential energy stored in the rubber band, how high can the slingshot shoot a 25- pebble
In vacuum, two charged particles lie 2.5 cm apart. Find the magnitude and direction of the electric field at a point midway between the two particles. (One has a charge of -8.0 µC and the other has a charge of +4.0 µC.) Magnitude.
26 g of copper pellets are removed from a 300 degree Celsius oven and straight away dropped into 116 mL of water at 25 degree Celsius in an insulated cup. What will the new water temperature be.
A typical hospital accelerator built for proton beam therapy accelerates protons from rest by passing them through and electric potential difference of magnitude 62MV. find the lorentz factor for these protons
Find the change in entropy in the universe. Now, two identical ideal oxygen gases with the same pressure P=1 atm and the same number of particles N = 10^22, but di erent temperature T1 = 30 C and T2 = 40 C,
Monochromatic light falling on two slits 1.9×10?2mm apart produces the fifth-order fringe at an 8.9? angle
An archer pulls the bowstring back for a distance of 0.470 m before releasing the arrow. What is the elastic potential energy of the drawn bow
q1. a 0.270 kg block on a vertical spring with a spring constant of 5.00 x 103 nm is pushed downward compressing the
Illustrate what are these accounting shenanigans? Briefly explain each. Do internet research to answer the question.
A 25 turn circular coil of length 5.9 cm produces a magnetic field of magnitude 1.6 mT at its center. Find the current in the loop
The stairs are 83 long and inclined at the angle of 31. If a player has a mass of 87, estimate his average power output on the way up. Overlook friction and air resistance.
A ball is thrown directly downward with an initial speed of 8.50 m/s, from the height of 29.5 m. After what time interval does it strike the ground.
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