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As a 13,800 kg jet plane lands on an aircraft carrier, its tail hook snags a cable to slow it down. The cable is attached to a spring with spring constant 58,100 N/m. If the spring stretches 32 m to stop the plane, what was the plane's landing speed?
What is momentum of the system immediately after the pack is thrown?
An aluminum wire having a cross-sectional area of 4.00 3 1026 m2 carries a current of 5.00 A. Find the drift speed of the electrons in the wire
Ann is driving down a street at 53km/h. suddenly a child runs into the street. If it takes Ann 0.709s to react and apply the brakes, how far will she have moved before she begins to slow down? Answer in units of m.
A plane leaves the airport in Galisto and flies 165 at 68.0 east of north and then changes direction to fly 230 at 48.0 south of east, after which it makes an immediate emergency landing in a pasture.
Copper wire has a breaking stress of about 3×10^8 N/m2. What is the highest load that can be hung from a copper wire of diameter 0.420 mm.
A rabbit runs in a straight line with a velocity of +1.40 m/s for a period of time, rests for 12 s, and then runs again along the same line at +0.63 m/s for an unknown amount of time.
A 790-kg object and an 889-kg object are separated by 11.0 m. At what position (from the less massive object) can the 260-kg object be placed so as to experience a net force of 10 N towards the less massive object.
Beats of frequency 4Hz are heard when a tuning fork of frequency 1000Hz and a vibrating wire are sounded together. What is frequency of the wire.
A hurricane wind blows across a 7.50m × 16.4m flat roof at a speed of 180km/hr, How much force is exerted on the roof
A race car has a mass of 718 kg. It starts from rest and travels 45.0 m in 3.0 s. The car is uniformly accelerated throughout the entire time. What net force is exerted on it.
The gravitational acceleration on the Moon is a sixth of that on Earth. The weight of an apple is 1.03 N on Earth. (a) What is the weight of the apple on the Moon? (b) What is the mass of the apple?
After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. If the cooler contained 7.20 kg of ice and the temperature of the ground was 40.5°C, calculate the energy that is required to melt all the ice at 0°C. Th..
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