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Two people (one having a mass of 40 kg and the other having a mass of 60 kg) stand at one end of a small uniform boat of mass 100 kg and length 20 m. The 60-kg person now slowly walks to the other end of the boat. Determine how far the boat moves in the process assuming no friction between the boat and the water.
Spark plugs should be tightened to a specified torque of 13.64Nm. You have a wrench that is 0.27 m long, What force must you exert on the wrench
In the figure, a man is standing near a gate and a flag pole. The gate is 15 ft from the pole. How far is the man from the gate
A boat is pulled by two locomotives through a canal of length 2.04 km, What is the net work done on the boat by the two locomotives
A solenoid is wound with a single layer of copper wire of radius 0.370 cm. The solenoid is 4.50 cm in diameter and 1.60 cm long. What is the inductance of the solenoid per unit length
A toy top with a spool of diameter 5.0 cm has a moment of inertia of 3.0 X 10^5 kgm2 about its rotation axis. To get the top spinning, its string is pulled with a tension of 0.30 N. How long does it take for the top to complete its first five revolut..
A cannonball is shot (from ground level) with an initial horizontal velocity of 40 m/s and an initial vertical velocity of 21 m/s, What is the initial angle of the cannonball with respect to the ground
A series AC circuit contains a resistor, an inductor of 210 mH, a capacitor of 5.10 µF, and a source with ?Vmax = 240 V operating at 50.0 Hz. Calculate the resistance in the circuit
A parallel-plate capacitor has 1.65 cm2 plates that are separated by 4.17 mm with air between them, how much energy does it store
A bat strikes a 182g ball with a force of 109-N at an angle of 57° above the horizontal. What is the ball's vertical acceleration (positive for upward, negative for downward).
A satellite moves around the Earth in a circular orbit of radiusr. (Use G for the universal gravitation constant,M for the mass of the Earth, and r, asappropriate, when answering parts (a), (b), and (c) below.)
After a tornado, a 0.60g straw was found embedded 3cm into the trunk of a tree. If the average force exerted on the straw by the tree was 90N, what was the speed of the straw when it hit the tree.
You're carrying a 3.40 m-long, 23 poles to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip.
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