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A binary star system has two stars, each with the same mass as our sun, separated by 8.00×1011m . A comet is very far away and essentially at rest. Slowly but surely, gravity pulls the comet toward the stars. Suppose the comet travels along a straight line that passes through the midpoint between the two stars. What is the comet's speed at the midpoint in m/s?
A 60 g ball is tied to the end of a 50 cm --long string and swung in a vertical circle. how far to the right does the ball hit the ground
A large closed bag of plastic contains 0.10 m3 of an unknown gas at an initial temperature of 10°C and at the same pressure as the surrounding atmosphere, 1.0 atm. How many moles of gas are in the bag
Water is supplied to an office building 44.0 m high through a pipe at ground level. Find the pressure in the larger pipe on the ground floor
Calculate the number of cells in a hummingbird assuming the mass of an average cell is ten times the mass of a bacterium
Gamma-ray bursters are objects in the universe that emit pulses of gamma rays with high energies. What is the wavelength of the these gamma rays
Two 72.0- hockey players skating at 7.00 collide and stick together. If the angle between their initial directions was 135 , what is their speed after the collision
A car is traveling at 41.0 km/h on a flat highway. If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop
A spring loaded toy is used to shoot a 3g ping pong ball straight up against air. What is the work done by air resistance
A small positively charged sphere of mass 4.68 g and charge +72 micro C is suspended horizontally in static equilibrium, find the magnitude of the tension in the horizontal string
calculate the electric field on the axis of the disk at 5 cm, 10 cm, 50 cm, 200 cm from the center of the disk
When point charges q1 = +2.1 ?C and q2 = +8.1 ?C are brought near each other, each experiences a repulsive force of magnitude 0.66 N. Determine the distance between the charges.
In a certain region, the earth's magnetic field has a magnitude of 4.8 x 10-5 T and is directed north at an angle of 66° below the horizontal. Determine the bullet's electric charge
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