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Q. Three nearly massless charges lie on a line. The charge of q1 is +5.4 , the charge of q2 is -2.9 , and the charge of q3 is 6.6 .
The distance A is found to be 0.38 meters. What is the distance B where charge q3 experiences no net force?
Q. A 0.100 kg meterstick is supported at its 40.0cm mark by a string attached to the ceiling. A 0.700 kg mass hangs vertically from the 5.00 cm mark. A mass is attached somewhere on the meterstick to keep it horizontal and in both rotational and translational equilibrium. If the force applied by the string attaching the meterstick to the ceiling is 19.6 N, determine the point where the mass attaches to the stick.
On an airplane's takeoff, the combined action of the air around the engines and wings of an airplane exerts an 8020-N force on the plane, focussed upward at the angle of 55.0° above the horizontal. The plane rises with constant velocity in the vertic..
A 5.00 x 10^4 kg space probe is travelling at a speed of 14000 m/s through deep space. Retrorockets are fired along the line of motion to decrease the probe's speed. The retrorockets generate a force of 4.00 x 10^5 N over a distance of 2600 km. What ..
A pendulum of length 1.5 m is held out to point A. At the vertical position, an overhang effectively cuts the length of the pendulum by an amount equal to 1.09 m. (That is, 1.0 m is no longer free to swing.) How long does this pendulum take for one o..
0.20g of hydrogen gas are held in a rigid container. The temperature of the gas is changed from 50 K to 80 K. How much heat is needed.
You (height of your eyes above the water, 1.75) are standing 2.00 from the edge of a 2.50--deep swimming pool. You notice that you can barely see your cell phone, that went missing a few minutes before, on the bottom of the pool.
A father (m = 65 kg) and son (m = 38 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3.0 m/s after they have separated. How fast would the father be moving.
Find out the type of mirror and how far the object is
A diving board of length 3.00m is supported at a point 1m from the end, and a diver weighing 520 m stands at the free end . The diving board is of uniform cross section and weighs 270m.
Get the expression for how moving clocks run slowly when seen by observers at rest.
An airplane flies 200 km due west from city A to city B and then 265 km in direction of 27.5° north of west from city B to city C.
An isolated copper sphere of radius 4.85cm, at first uncharged, is illuminated by ultraviolet light of wavelength 244nm. The work function for copper is 4.70 eV. What charge does the photoelectric effect induce on sphere.
You are to gracefully crawl in the tube and sit calmly in seat without holding on to anything. The cannon will then be raised to an angle such that your speed through the air at your highest point is 10 ft/sec.
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