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A shell is shot with an initial velocity of 27 m/s, at an angle of θ0 = 60° with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is zero, falls vertically. How far from the gun does the other fragment land, assuming that the terrain is level and that the air drag is negligible?
A satellite orbits a planet of unknown mass in a circle of radius 2.3 x 107 m. The magnitude of the gravitational force on the satellite from the planet is F = 89 N. What is the kinetic energy of the satellite in this orbit
a block of mass M=46 kg slides down a frictionless inclined plane and collides elastically with another block of mass m=25.0 kg. what is the velocity of m after the collision
The supersonic aircraft Concorde has a length of 61.3 meters when sitting on the ground on a typical day when the temperature is 12. Celsuius . The Concorde is primarily made of aluminum. In flight at twice the speed of sound, friction with the ai..
The Cosmoclock 21 Ferris Wheel in Yokohama City Japan hasdiameter of 100m, Find the speed of the passengers when the Ferris wheel isrotating at this rate
A vehicle is speeding at 115 km/h on a straight highway when a police car moving at 145 km/h enters the highway from an onramp and starts chasing it.
A speeder is pulling directly away and increasing his distance from a police car that is moving at 25 m/s with respect to the ground. Find the speeder's speed with respect to the ground
A satellite 8.3x107 km above the surface of a celestial body, whose radius is 39,000 km and whose mass is 6.0x1027 kg, Which clock will be running faster
H-F molecule has spring constant of 970 N/m. Assume that an H-F chemical laser, which lases betwee vibrational states of the H-F molecule, how many photons per seconde does it emit
A box is being pushed to the right parallel to the x-axis by a force of 15.0 N. find the magnitude of the net force acting on the box
At serve, a tennis player aims to hit the ball horizontally. What minimum speed is required for the ball to clear the 0.9 m highnet about 15 m from tge server
In a museum exhibit, three equal weights are hung with identical wires. Each wire can support a tension of no more than 72.0N without breaking. Under these conditions, what is the tension in the middle wire
a cylindrical copper rod has resistance of 0.3 ohm. it is reformed to 3.8 timesm its original length with no change of
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