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Three guns are aimed at the center of a circle, and each fires a bullet simultaneously. The directions in which they fire are 120° apart. Two of the bullets have the same mass of 3.86 x 10-3 kg and the same speed of 330 m/s. The other bullet has an unknown mass and a speed of 601 m/s. The bullets collide at the center and mash into a stationary lump. What is the unknown mass?
With the engines off, a spaceship is coasting at a velocity of+230m/s through outer space. The ship carries rockets that aremounted in firing tubes, What is the velocity of the rocket
A hang glider and its pilot have a total mass equal to 146 kg. While executing a 360° turn, the glider moves in a circle with a 9 m radius. What is the net force on the hang glider
The Hubble Space Telescope (HST) is on a circular, low-Earth orbit, at an elevation h = 600 km above the Earth's surface. The orbital period is about 5800 seconds. For an observer who sees HST pass through the zenith, how long is HST above the horizo..
Boiling Water at High Pressure. When water is boiled under a pressure of 2.00 atm, the heat of vaporization is 2.20 multiply.gif 106 J/kg, Compute the increase in internal energy of the water
A car is traveling at a constant speed of 20 m/s (about 44 mi/h) that is initially traveling due northwest rounds a corner so that after 10 s, What are the magnitude and direction of the car's average acceleration during this interval of time
An electron with mass 9.11×10-31 kg moves with a speed of 1.90×106 m/s in a circle of 2.63 cm radius under the influence of a magnetic field. A proton of mass 1.67×10-27 kg , moving in the same plane with the same speed, experiences the same centripe..
A block with a mass of 7.32kg is on an incline plane that makes an angle 37.5o with respect to the horizon. what is the coefficient of kinetic friction
You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. What is the maximum horizontal range of your gun
What was the absorbed dose in the carbon walls? The average mass stopping powers of graphite and CO2 for the photons are, respectively, 1.648 and 1.680 MeV cm^2/g.
Two charges are fixed on the x axis: one with a charge of = 5.00 at = -1.00 and the other with a charge of = 3.00 at = 1.50 . Find the force exerted on a charge = -5.00 placed at the origin (x=0). What are the magnitudes of the three charges q, q1..
At depths greater than 2 meters in Kansas, the wintertime soil temperature is approximately 15 degrees C. Determine the coefficient of performance
In a hydraulic system, the piston on the left has a diameterof 5.1 cm and a mass of 1.7 kg. what is the height difference between the two pistons
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