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A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 80.8 m/s at ground level. The engines then fire, and the rocket accelerates upward at 3.80 m/s2 until it reaches an altitude of 930 m. At that point its engines fail, and the rocket goes into free fall, with an acceleration of ?9.80 m/s2. (You will need to consider the motion while the engine is operating and the free-fall motion separately.)
(a) For what time interval is the rocket in motion above the ground?
(b) What is its maximum altitude?
(c) What is its velocity just before it hits the ground?
A tank of water 3.0 m deep sits on a table 1m tall. A hole is located 2m from the bottom of the tank. Water flows out of hole and strikes the ground. Where does it strike the ground? Suppose incompressible, non viscous flow.
Two hockey players strike a puck of mass 0.169 kg with their sticks simultaneously, exerting forces of 1.17 103 N, compute the instantaneous acceleration of the puck
Determine the Intelligence frequency, carrier frequency, Modulation index, Carrier power, total power in FM signal and power in each sideband.
An athlete at a gymnasium holds a 3.0kg steel ball in his hand. His arm is 70cm long and has a mass of 4.0kg. Calculate the magnitude of the torque about his shoulder if he holds his arm
Two tiny conducting spheres are identical and carry charges of -29.4C and +70.0C. They are separated by a distance of 2.66 cm. (a) What is the magnitude of the force that each sphere experiences?
Find the wavelengths of these extremes at a temperature. find out the force exerted by the man on the rope, and the work done in dragging the box over a distance of 15m.
A block of ice at 0 degrees C, whose mass is initially 30.0 kg, slides along a horizontal surface, starting at a speed of 5.56 m/s and finally coming to rest after travelling 21.8 m. figure out the mass of ice melted (in grams) as a result of frictio..
A velodrome track is banked so that a bicycle traveling at 43.5 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 59.0 m
An outboard motor for a boat is cooled by lake water at 14.7 degC and has a compression ratio of 14.1, Calculate efficiency of the engine's Otto Cycle
The collision is not head-on. After the collision, the two pucks fly apart with the angles shown in the drawing. Find out the final speed of puck A also Find out the final speed of puck B. m/s
A uniform magnetic field of magnitude B = 0.020 T is in the positive y-direction. Determine the magnitude and direction of the magnetic force on each segment.
A microscope uses an eyepiece with a focal length of 1.43 cm. What is the magnification of the microscope
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