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How come in free fall you feel weightless even though gravity is pulling down on you? (ignore air resistance when answering this question).
A beaker is filled to the brim with water. A solid object of mass 3.00 kg is lowered into the beaker so the object is fully submerged in the water, find the buoyant force that acts on the submerged object
A trolley that moves along a horizontal beam is acted upon by two forces as shown. (a) Knowing that a 5 25°, determine by trigonometry the magnitude of the force P so that the resultant force exerted on the trolley is vertical. (b) What is the cor..
Having grown tired of hearing loud music from passing cars at 3 am and the boisterous yelling of bar patrons at closing, If her new home is 2.8 km from the freeway, what's the intensity level there
What is the magnitude of the net force on the student. A student who weighs 470N is wearing a backpack that weighs 84N. The student is standing still on level ground.
a spaceship is heading toward a planet. while descending to the surface its rockets produce 25 kn of upward thrust and
A submarine is 325 m horizontally out from the shore and 115 m beneath the surface of water. A laser beam is sent from the submarine so that it strikes the shore.
what speed does the rock have as it strikes the ground?
while taking photographs in death valley on a day when the temperature is 50.0degc bill hiker finds that a certain
Two identically constructed clocks are synchronized. One is put into orbit around Earth, and the other remains on Earth. Which clock runs more slowly? When the moving clock return to Earth, will the two clocks still be synchronized? Talk about from t..
A standard 35mm slide measures 24mm by 36mm. Suppose aslide projector produces a 60cm by 90cm image of the slide on ascreen. The focal length of the lens is 12cm. What is the distance between the slide and the screen
q1. imagine that temperature of atmosphere is constant and is approximately 5degc.define hh2o altitude where the
Three pendulums with strings of the same length and bobs of the same mass are pulled out to angles q1, q2 and q3 respectively and free. The approximation sin q = q holds for all three angles, with q3 > q2 > q1. How do the angular frequencies of th..
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