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a shot putter threw a shot-put with a speed of 13.4 m/s at an angle of 43 above the horizontal. she released the shot-put from a height of 2m above the ground. How far did the shot-put travel in the horizontal direction?
The two blocks are on frictionless inclines and are in static equilibrium. The block on the left has a mass of 49 Kg, and the block on the right has a mass of n3 Kg. If the left incline has the length of n1 meters, and the right incline the length of..
A man's gold wedding ring has an inner diameter of 2.2cm at 30?C. what will be the change in the inner diameter of the ring
A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the similar as that of the Moon, 27.3 days. How far away from the Earth m..
A convex mirror has a focal length of -20 cm. What is the position of the resulting image in cm if the image is upright and one-fourth the object size
Galaxies form by gravitational collapse of regions that are denser than average. Noting that the present day average mass density of the universe is ρ = 3 × 10-30 g/cm-3, estimate how long it takes for a galaxy to collapse.
You jump from the top of a boulder to the ground 1.85 m below. Calculate your deceleration on landing
Suppose that a structure of arbitrary complexity has a number of forces applied to it (at various points) and yet is in static equilibrium. The principle of virtual work allows one to write an equation that relates the applied forces.
A magnetic field is directed at a 40.0 angle to a plane circular loop of wire with a radius of 26.8 cm. a) Draw a diagram showing the wire loop, compute the induced emf in the wire loop
What is the distance, measured along the screen, between this bright fringe and bright fringe corresponding to m = 3.
(a) Calculate the ratio of the electric potential at the surface of the large sphere to that of the small sphere. (b) Calculate the ratio of the magnitudes of the electric fields at the surface of the large sphere to that of the small sphere.
A 68.0 kg person escapes from a burning building by jumping from a window 25m above a catching net. Assuming that air resistance exerts a 95N force on the person during the fall, determine the person's velocity just before hitting the net.
A single electron orbits a lithium nucleus that contains three protons (+3e). The radius of the orbit is 1.76 10-11 m. Determine the kinetic energy of the electron.
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