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Question: The mean diameters of X and Y, two planets in the same solar system, are 6.4 x 103 km and 1.2 x 104 km, respectively. The mass of X is 0.25 times the mass of Y. The value of g on Y is 8.8 m/s2. The mass of Y is 4.750 x 1024 kg. What is the escape speed on X?
70-kg astronaut is loaded so heavily with equipment that on Earth he can jump only to a height of 10 cm. How high can he jump on the moon
During a baseball game, a batter approaches the plate. The pitcher hurtles the ball in the direction of the batter at a speed of 85 miles per hour. find the momentum of the system in the center of mass frame
A 12.0 kg box resting on a horizontal, frictionless surface is attached to a 5.00 kg weight by a thin, After the system is released, find the horizontal tension in the wire
An object of mass 263.25285 g executes SHM with an amplitude of 14.906379 cm and a period 29.11989 s. Find the force acting on the object
The acceleration of a system of two masses of 15kg and 20kg, both connected by a rope and moving on a horizontal plane, is 5m/s^2.Determine the force that acts on the system.
Three equal positive point charges of magnitude Q = 3.00? C are located at three corners of a square of edge length d = 8.9 cm. What is the magnitude of the attractive force on the negative charge
The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.67 m and 1.05 m, respectively. The respective rotational speeds are 456 rev/min and 4,130 rev/min.
The surface pressure on Venus is 92.00 atm, and the acceleration due to gravity there is 0.894 g. What force does the Venusian atmosphere exert on the outside surface of the bottom of the tank
Three point charges have equal magnitudes, two being positive and one negative. Calculate the magnitude of the net force
Two carts with masses of 5.00 kg and 2.64 kg move toward each other on a frictionless track with speeds of 4.86 m/s and 3.46 m/s correspondingly. The carts stick together after colliding head-on. Find the final speed.
A 13.8-g piece of Styrofoam carries a net charge of -0.72 µC and is suspended in equilibrium above the center of a large, determine the charge per unit area on the plastic sheet
You hear a fire truck with a certain intensity, and you are about 1 mile away. Another person hears the same fire truck with an intensity that is about 10 times less. how far is the other person from the fire truck
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