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During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of +4.1 m/s, grabs and holds onto him so that they move off together with a velocity of +2.4 m/s. If the mass of the tackler is 125 kg, determine the mass of the receiver. Assume momentum is conserved.
question a proton is fired at 7e6 ms directly towards a stationary 2e-6 c point charge that cannot move and is
You are provided with a 1 cm3 of biological sample from which 0.1 mm thin sections are cut. A search for virus cells at a magnification of 100,000 has been proposed. The fluorescent screen on which the image is to be projected has a diameter of 15 cm..
Find the two locations where an object can be placed in front of a concave mirror with a radius of curvature of 37cm such that its twice its size
a boy throws a rock with a rock with an initial velocity of 2m/s at 30 degree above the horizontal. how long does it take for the rock to reach the maximum height of its trajectory
question1a piece of aluminium specific heat 0.910 kjkg 0c of mass 138 g at 74 0 c is dropped into a styrofoam cup
What is magnitude of the linear acceleration of the hoop . Elucidate using Newton's Second Law of Motion, why you can throw a golf ball further than a bowling ball, still though you throw both at the similar angle and with the same amount of force.
Explain why the two lines on your graph should always cross at the frequency where XC =R. Find this frequency from your component values and compare it to your graph. What should Vout/Vin equal for each filter at that point?
An object located 25.0 cm from a convex mirror produces a virtual image 16 cm from the mirror. What is the magnification of the image
A 115mg plastic bead has a radius of 364um and is charged by the addition of 1.56 x 1010 excess electrons. What is the charge density of the bead
The amplitude of a lightly damped oscillator decreases by 1.7% during each cycle. What percentage of the mechanical energy of the oscillator is lost
A refrigerator has a coefficient of performace of 2.10. In each cycle it absorbs 20000J of heat from th ecold reservoir. how much heat is discarded to the high-temperature reservoir
Suppose a 1-meter-long bare expands 0.5 centimeters when heated. by how much will a 100-meter-long bar of the same material expand when similarly heated?
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