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A fighter airplane is launched from an aircraft carrier with the aid of its own engines and a steam powered catapult. The thrust of its engines is 2.3 x 105 Newton. In being launched from rest it moves through a distance of 87 meter and has a kinetic energy of 4.5 x 107 Joule at lift-off. Determine the work done on the airplane by the catapult?
A spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position. How much work is done by the spring when the latch is released and the pellet leaves the tube
A stopwatch is utilized to measure how long it takes a sprinter to run 100 meters. This stopwatch measures time intervals to hundredths of seconds. Using the stopwatch the timekeeper measures the sprinter’s time as9.88 seconds.
Let us use the uncertainty principle to (very roughly) estimate the size of a hydro- gen atom. Picture the hydrogen atom as an electron orbiting a proton at close to the speed of light.
a 6.00 x 102 kg hot-air balloon takes off from rest at the surface of the earth. the nonconservative wind and lift
After the Sun exhausts its nuclear fuel, its ultimate fate may be to collapse to a white dwarf state. Calculate the average density of the white dwarf
A 1.00 kg duck is flying overhead at 1.50 m/s. When a hunter firesstraight up. The 0.0100Kg bullet is moving 100m/s when it hits duckand stay lodged in the duck's body. What is the speed of the duckand bullet immediately after the hit?
A copper washer is to be fit in place over a steel bolt. Both pieces of metal are at 29.7°C. to what temperature must the washer be raised so it will fit over the bolt
The lowest note on a grand piano has a frequency of 27.5 \rm Hz. The entire string is 2.00 \rm m long, What tension is needed to tune this string properly
A 2.1*10^3-kg car starts from rest atthe top of a5.0-m-long driveway that is sloped at 20 degrees with thehorizontal. find the speed of the car at the bottom of the drive way
An angler hangs a 4.52-kg fish from a vertical steel wire 1.65m long and 5.47×10?3cm2 in cross-sectional area. Calculate the amount the wire is stretched by the hanging fish
A set of jumpers cables used to start a car from another car's batterty is connected to the terminals of both batteries. What is the force per unit length on the cables
Two stars located 22 light-years from Earth are barely resolved using a reflecting telescope having a mirror of diameter 66 cm. find the separation between the stars
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