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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 itsengines is 3.46 x 105 N. In being launched from rest itmoves through a distance of 69.6 m and has a kinetic energy of 6.85x 107 J at lift-off. What is the work done on the jet by the catapult?
Jeff of the Jungle swings on a 7.6- vine that initially makes an angle of 47 with the vertical. If Jeff starts at rest and has a mass of 88 , illustrate what is the tension in the vine at the lowest point of the swing?
A 59.00kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12-m. If the skier's speed at point A is 7.0 m/s, what is the normal force exerted by the snow on the skier at point B? Ignore f..
A spring has of constant k=1200 N/m is compressed by 8.0cm. A 2.5kg block is placed against the compressed spring. find the resulting kinetic energy and speed of the block
A pipe with a 2m diameter carries water having a velocity of 4 m/s. What is the mass flow rate of the water in kg/s at the following temperatures.
A torque of 2.2 N.m is applied to a spherical shell of radius 0.25 m. what is the mass of the disk
a blue ball is thrown upward with an initial speed of 19.6 ms from a height of 0.7 meters above the ground. 2.4 seconds
Besides the gravitational force, a 3.40-kg object is subjected to one other constant force. The object starts from rest and in 1.20 s experiences a displacement of (5.50 - 3.30) m, where the direction of is the upward vertical direction. find the ..
A playground is on the flat roof of a city school, 5.3 m above the street below, Find the vertical distance by which the ball clears the wall
a crossed-field velocity selector has a magnetic field of magnitude 0.045 t. the mass of the electron is 9.10939 times
the speed of an object and the direction in which it moves constitute a vector quantity known as the velocity. an
Four 1.8 kg masses are located at the corners of a square 0.20 m on each side. Find out the magnitude and direction of the gravitational force on a fifth 1.8 kg mass placed at the midpoint of the bottom side of the square.
Consider an LR circuit like that displayed in Figure 6.6 in Activity 2-1 in your lab manual. You measure the current through the inductor as a function of time, What is the total resistance of the circuit
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