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A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 3.26 x 105 N. In being launched from rest it moves through a distance of 64.9 m and has a kinetic energy of 7.81 x 107 J at lift-off. What is the work done on the jet by the catapult?
Two carts with masses of 12.5 kg and 4.5 kg, respectively, move in opposite directions on the frictionless horizontal track with speeds of 8 m/s and 5 m/s, respectively. The carts stick together after colliding head-on. Find the final speed of the..
An ideal spring of negligible mass is 11.00cm long when nothing is attached to it, If you wanted to store 10.0 J of potential energy in this spring, what would be its total length? Assume that it continues to obey Hooke's law
In what time interval does it reach this velocity. How high would the insect jump if air resistance were negligible.
The tuner starts with the tension in the E string a little low, after that tightens it. What is the frequency of the E string while she hears four beats per second.
You drop 500 g of ice at -35oC into a bucket of water (1200 g) at 45oC. Find the final temperature of the system
In order better to map the surface features of the Moon, Calculate the satellite's kinetic energy, gravitational potential energy, and total orbital energy
A circular disc of mass 10 kg is suspended by a wire attached to its centre. Determine the torsional spring constant of the wire
At a constant speed of 55 km/h , an automobile travels 600m along a straight highway that is inclined 5.0 degrees to the horizontal. What is the cars vertical velocity magnitude
A cylindrical container 1.6 m tall contains mercury to a certain depth d. The rest of the cylinder is filled with water. If the pressure at the bottom of cylinder is two atmospheres, what is the depth d.
A force of k is applied to an object for a small fraction of a second, t_k, less than the duration of one frame, t_f. Our simulation doesn't support applying forces for less than an entire frame, so if we wanted to simulate the effect of force k over..
A college student produces about 135 kcal of heat per hour on the average. What is the rate of energy production in watts
An aircraft with a mass of 956 kg accelerates from 0 to 92 m/s in 6.7 seconds, What is the kinetic energy of the aircraft when the aircraft launches
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