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A golf ball is dropped from rest from a height of 9.70 m. It hits the pavement, then bounces back up, rising just 6.00 m before falling back down again. A boy then catches the ball when it is 1.00 m above the pavement. Ignoring air resistance, calculate the total amount of time that the ball is in the air, from drop to catch.
A person's left eye has a near point of 18.0 cm and a far point of 2.50 m. What power contact lens would you recommend
Suppose you are at the earth's equator and observe a satellite passing directly overhead and moving from west to east in the sky. How far above the earth's surface is the satellite's orbit
A flight attendant pulls her 70 N flight bag a distance of 247 m along a level airport floor at a constant speed. The force she exerts is 33.00 N at an angle of 52° above the horizontal.
A box of mass 5.8 kg is accelerated from rest by the force across a floor at a rate of 2.0 m/s2 for 8.2 s. Find the net work done on the box.
A cup with mass 4.1 kg has been sitting in a room with a temperature of 23 oC for a long time. Calculate the specific heat of the cup
A professor's office door is 0.95 wide, 2.2 high, 4 thick; has a mass of 22 , and pivots on frictionless hinges. A "door closer" is attached to door and the top of door frame. When the door is open and at rest, the door closer exerts a torque of 5..
A carbon nanopaeticle contains 7000 carbon atoms. According to the Einstein model of a solid, how many oscillators are in this block
Two ropes support a load of 253 kg. The two ropes are perpendicular to each other, Find the tension in the second rope
question1two cars drive on a straight highway. at time t0 car 1 pass mile marker 0 travelling due east with a speed of
What was the initial negative charge on one of the spheres, and what was the initial positive charge on the other?(Hint: Use charge conservation and solve for one of the initial charges. You will end up with a quadratic equation. The solutions giv..
The plane of a 6.0 cm × 8.0 cm rectangular loop of wire is parallel to a 0.16-T magnetic field. The loop carries a current of 6.8 A, What torque acts on the loop
Assume the masses described in the preceding problem are 1kg and 100kg in that order. Compare the accelerations while they are interchanged.
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