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A rifle is aimed horizontally at a target 50 meter away the bullet hits the target 1.5 centimeter below the aim point,
Find the bullet flight time?
Find the bullet speed as it left the barrel?
Assume the square wire loop is replaced with a smaller one, made of the same wire that is 0.02 m on a side, half as long as the original.
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 9.00 m/s at an angle of 20.0° below the horizontal. Find the height from which the ball was thrown
A certain Crystal has a set of planes spaced 0.30 nm apart. A beam of neutrons strikes the crystal at normal incidence and the first maximum of the diffraction occurs at ?=42 degree. What is de-Broglie wavelength of neutron beam? What should be momen..
He would like a prescription for contact lenses to serve the same purpose. What is the exact contact lens prescription, in diopters.
The angles are measured counterclockwise from an axis pointing to the east, the + x direction. Determine the resultant displacement from the starting point. Enter the distance in paces (without units) and the angle relative to the positive x-ax..
In the figure below, projectile particle 1 is an alpha particle and target particle 2 is an oxygen nucleus. Find the initial speed of the alpha particle
a copper rod of length 1.12 m is lying on a frictionless table see the drawing. each end of the rod is attached to a
In a steam turbine, steam is flowing at 20kg/s. At the inlet of the turbine, specific enthalpy is 2800kJ/kg, velocity 20m/s and heigh is 2m. Obtain the turbine output power
A 60kg boy and a 45 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 2.3 m/s2, find the magnitude of the acceleration of the boy toward the girl.
A simple pendulum has a length of 0.80 m and a bob of mass 0.20 kg. It is initially displaced to an angle of 18 degrees from the vertical, What angle does it make with the vertical
A 4.90-kg ball, moving to the right at a velocity of +2.14 m/s on a frictionless table, Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
A 2 kg block and a 3 kg block are pushed across a 2 m long frictionless table, Compare the kinetic energies of the two blocks when they reach the end of the table
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