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A rifle weighs 50.0 Newton and its barrel is 0.750 meter long. It shoots a 25.0 gram bullet, which leaves the barrel at a speed (muzzle velocity) of 300 m/s after being uniformly accelerated. Find the magnitude of the force exerted on the rifle by bullet?
Sam's job at the amusement park is to slow down and bring to a stop the boats in the log ride. how much work does Sam do to stop it
Light of wavelength 5.60 102 nm illuminates a pair of slits separated by 0.320 mm. If a screen is placed 2.10 m from the slits, determine the distance between the first and second dark fringes.
Draw a complete rigid body diagram for a boom of a crane. Given, it is hanging clockwise, with a mass hanging from it as well
When traveling past an observer with a relative speed v, a rocket is measured to be 9.10 meter long. Compute the proper length of the rocket
T thin lense with a focal length of 50 cm is placed 100 cm from an object. How far behind the lense should we place a screen
A source delivers an AC voltage of the form ?v = 96.2 sin (66?t), obtain the frequency of the source
The resistance of a bagel toaster is 14 ?. To prepare a bagel, the toaster is operated for one minute from a 120-V outlet. How much energy is delivered to the toaster
A 35-turn circular coil of wire has a diameter of 0.57 m. find the strength of the average emf generated in the coil
The side of a hollow cubical box is 0.4 m. The box floats in ariver with one fourth of it's height beneath the surface. what is the depth of the liquid in the box at the instant the box begins to sink
An oscillating mass-spring system has A total energy of 1.18J , amplitude of 9.84cm, Find the spring constant , the mass of the block and the angular frequency
An electron with a speed of 4.00×10^6 m/s , collides with an atom. What is the speed of the electron after the collision
A rectangular block of ice 12 m on each side and 1.3 m thick floats in sea water. The density of the sea water is 1025-kg/m3. The density of ice is 917 kg/m3. How many penguins of mass 26 kg each can stand on the ice block before they get their fe..
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