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Two ice skaters face each other, one is 100 kg and the other is 50 kg. They push against each other's palms and move apart. What is the speed of the lighter skater?
A boy tosses a ball in the vertical direction off the side of a cliff. if the initial velcoity of the ball is 15 m/s upward, determine the maximum height sb reached by the ball
A helicopter is lifting two crate simultaneously. One cable with a mass of 200.kg is attached to the helicopter by a cable. what is the tension in each of the two cables
Three capacitors numbered 1, 2 & 3, each have the same value of capacitance, What is the effective total capacitance
A 30 g steel ball bounces elastically on a steel plate, always returning to the same maximum height h = 14.2 m. With what speed does the ball leave the plate
A 2.4kg toy locomotive is pulling a 1.6kg caboose. The frictional force of the track on the caboose is 0.54N backward all along the track. If the train is accelerating forward at 3 m/s2, what is magnitude of the force exerted by the locomotive on ..
Under certain conditions, the human body can withstand an acceleration of 10 g's. What is the net force (in Newtons) acting on a person
Make a table summarizing the rules for circuits with resistors: How to combine resistors in parallel, how do voltages behave in series and in parallel
question 1 silver has a resistance of 0.00198 ohms. what voltage would produce a current of 100 a?question 2 find the
A 1500 kg car has a speed of 35 m/s. If it takes 7 s to stop the car, what is the impulse and the average force acting on the car
A sample containing sulfur (atomic mass 32 u), manganese (55 u), and an unknown element is placed in a mass spectrometer. What is the mass of the unknown element
One of James Bond's adversaries is standing on a frozen lake. There is no friction between his feet and the ice. what is the magnitude of his horizontal recoil velocity
High-speed stroboscopic photographs show that the head of a 250-g golf club is traveling at 52 m/s just before it strikes a 46-g golf ball at rest on a tee. Find the speed of the golf ball just after impact
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