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An astronaut on the planet Zircon tosses a rock horizontally with a speed of 6.95 m/s. The rock falls through a vertical distance of 1.40 m and lands a horizontal distance of 8.75 m from the astronaut. What is the acceleration of gravity on Zircon?
Suppose you have a 1000 kg weather satellite that you would like to put into circular orbit 300 km above earth. How much work is required to place the satellite into orbit
Jeff of the Jungle swings on a vine that is 7.20 long. At the bottom of the swing, just before hitting the tree, Jeff's linear speed is 8.50. Find the magnitude of his tangential acceleration
A 40-g object connected to a spring with a force constant of 30 N/m oscillates with an amplitude of 8 cm on a frictionless, horizontal surface. Find the total energy of the system
Two metal balls A and B of negligible radius, connected by a taut nonconducting thread of length 2.40 m, are floating at rest on Space Station Freedom between two metal bulkheads. Ball A carries charge q, and ball B carries charge 2q.
Two particles are fixed to an x axis: particle 1 of charge -4.00 10-7 C at x = 6.00 cm, and particle 2 of charge +4.00 10-7 C at x = 42.0 cm
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 50.0 degrees. find the angle the resultant force makes with the rope of dog A
how many electrons must be removed from each of two 4.8-kg copper spheres to make the electric force of repulsion
Suppose 60kW is to be transmitted over two 0.150? lines, Estimate how much power is saved if the voltage is stepped up from 200V to 2000V
Between 1911 and 1990, the top of the leaning bell tower at Pisa, Italy, moved toward the south at an average rate of 1.2 mm/y. The tower is 55 m tall. In radians per second, what is the average angular speed of the tower's top about its base?
The current from an AC source is given by: I(t) = 6.50 sin(84.0 t + 1.090 ) mA, What would the phase shift be in degrees
A U-shaped tube open to the air at both ends contains some mercury. Calculate the vertical distance h from the top of the mercury in the right-hand arm of the tube to the top of the water in the left-hand arm
High-speed stroboscopic photographs show that the head of a 170-g golf club is traveling at 47 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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