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A fighterjet is launched from an aircraft carrier with the aidof its own engines and a steam powered catapult. The thurst of itsengine2.3*10^5N. In being launched from rest it moves through adistance 87m and has KE 4.5*10^7J at lift off. What is the work done on the jet by the catapult.
A 10kg mass that is moving at 15m/s hits a stationary 10kg mass. The collision is elastic. what is the total momentum BEFORE the collision
Acircular hole of radius 8.470×10−1 cm must be cut into the front panel of a display unit. The tolerance is1.0×10−3 cm, which means the actual hole cannot differ by more than this quantity fromthe desired radius. If the actual holeis larger than the..
A 80 kg man is ice-skating due north with a velocity of 6.0 m/s when he collides with a 35 kg child. find the magnitude of the child's velocity just before the collision
An archer wishes to shoot an arrow at a target at eye level a distance of 49.0 m away. what angle should the arrow make with the horizontal as it is being shot
A hoop and a disk, both of 0.72- m radius and 5.0- kg mass, are released from the top of an inclined plane 3.0 m high and 7.1 m long. What is the speed of the hoop
A wire has a length of 7.40 10-2 m and is used to make a circular coil of one turn. what is the maximum torque that this coil can experience
A ball of mass 0.196 kg with a velocity of 1.41 m/s meets a ball of mass 0.302 kg with a velocity of -0.393 m/s in a head-on, elastic collision. (a) Find their velocities after the collision. 1f = m/s 2f = m/s (b) Find the velocity of their center of..
An asteroid has been discovered revolving around the sun on a circular orbit with radius 4.2 times of the Earth's orbit around the SUN ( about 149.6 million km ). Knowing that it takes the Earth 1 year to complete a revolution, how may years does it ..
The x and y components of a displacement vector are -3.00 m and +4.00 m, respectively. What angle does this vector make with the positive x axis
A cart starts from rest at the top of the tilted track. Assume the track is frictionless. The cart passes photogate A moving at speed 5.41 cm/s, Find the magnitude of the acceleration of the cart
describe the enery transformations that take place as you swing on a swing.why do you have to keep pumping to keep swinging as high? what happens if you stop pumping
3.00×104 of 300 C steam at a pressure of 20.0 is cooled until it condenses. What is the volume of the liquid water
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