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Two ropes are attatched to a heavy object. The ropes aregiven to two strong women with the instructions for each to pull with 1000N (newtons) of force. What is the total resultant if the two women pull?
a parallel-plate capacitor is connected to a battery. the energy of the capacitor is . the capacitor is then
A train with a total mass of 2.4 × 10^6 kg rises 715 m while traveling a distance of 64 km at an average speed of 12 km/h. Find power output of the train's engines
A playground merry-go-round (uniform disk with mass M=150kg and radius R=2m) rotates on a frictionless axle through its center. What is the kinetic energy of the child-merry-go-round-system
A screen is placed 1.30 {rm m} behind a single slit. The central maximum in the resulting diffraction pattern on the screen is 1.70 {rm cm} wide-that is, two first-order diffraction minima are separated by 1.70 {rm cm}.
The specific heat of lead is .030 cal/g x degrees C. 300 grams of lead shot at 100 celcius is mixed with 100 grams of water at 70 degrees celcius in an insulated container. the final temperature of the mixture is what? Detailed solution gets lifes..
A lens is formed from a plastic material that has an index of refraction of 1.55. If the radius of curvature of one surface is 1.25 m, calculate the focal length and the power of the lens.
An object is initally spinning at 57.7 rad/s counter-clockwise, How many revolutions will the object make before it stops
A skydiver jumps out of a plane and fall 7.7 seconds before opening the parachute. What is the sky diver's speed when parachute opens
A 3.00 kg block slides from rest from the bottom of an inclined plane, tilted up at 25 degrees. How fast is the block traveling up the ramp
a dinoflagellate takes 5.2 s to travel 0.6 mm. approximate a dinoflagellate as a sphere of radius 35.0 microm ignoring
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 56° C. What is the temperature coefficient of resistivity
A 700 omega and a 2300 omega resistor ar econnected in a series with a 12-V battery. What is the voltage across the 2300 omega resistor
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