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A 12.0 kilogram shell is launched at an angle of 55o above the horizon with an initial velocity of 150 m/s. When at its highest point, the shell explodes into 2 fragments - 1 fragment is 3 times heavier than the other. The 2 fragments reach the ground at the same time, neglect air resistance. If the heavier fragment lands back at the same point from which the shell was launched, where will the 2nd fragment land and compute how much energy was released by the explosion?
A skydiver reaches a "terminal velocity" of 120 km/h. If the skydiver has a mass of 59kg, what is the magnitude of the upward force on the skydiver
A skier starts from rest at the top of a hill. The skier coasts down the hill and up a second hill, as the drawing illustrates. What must be the height h of the first hill
Two identical pieces of rope, 10 m long, have mass per unit length, μ = 0.10 kg/m. One of the two is soaked in water and absorbs an additional 1.0 kgof mass. The two ropes are then attached together and stretched horizontally under a tension of 200 N..
a one-dimensional infinite well of length 100 pm contains an electron in its third excited state. we position an
We wish to design an ac generator using an armature on which is wound a flat tight rectangular coil (8.00 cm x 20.0 cm) of 150 turns. Determine what angular speed should the coil turn
what are the wavelengths of electro magnetic waves in free space that have frequencies of a) 5.00 x 10^19Hz, b) 4.00 x 19^9.
The distance between the first and fifth minima of a single slit diffraction pattern (on the same side of the central maximum) is 0.35 mm with the screen 45 cm away from the slit and using light of wavelength 550 nm. For this problem, you may assu..
A 37.8 kg box initially at rest is pushed 5.27 m along a rough, horizontal floor with a constant applied horizontal force of 81.3836 N. Find the work done by the friction
A magnetic field is oriented at an angle of 51 degree to the normal of a rectangular area 5.5 centimeter by 7.2 centimeter. evaluate what is the strength of the magnetic field
A person with a boat wants to cross a river 1 mile wide flowing with a current 8 mi/hr. Find what time will it take him to cross the river
An 85-kg jogger is heading due east at a speed of 2.5 m/s. A 55-kg jogger is heading 24° north of east at a speed of 3.7 m/s. Find the magnitude and direction of the sum of momenta of the two joggers.
A 1200-turn coil of wire that is 2.0cm in diameter is in a magnetic field that drops from 0.14T to 0 T in 11ms. What is the emf of the coil
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