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The diving board shown in the figure below has a mass of 28 kg and its center of mass is at the board's geometrical center.
Determine the forces that support posts 1 and 2 (separated by 1.4 m) exert on the board when a 60-kg person stands on the end of the board 2.8 m from support post 2. Use positive values for the upward forces and negative values for the downward forces.
A woman at an airport is towing her 25.0 kg suitcase at constant speed with pulling on a strap at an angle of 45 degrees above the horizontal. The coefficient of kinetic friction is μk=0.30. Draw a free body diagram of the suitcase.
An electric field given by E = ai - b(y2 + c)j pierces the Gaussian cube of the figure, where the cube has side length d. What is the electric flux through the bottom face
A point source of light illuminates an aperture 2.00m away. How wide is the aperture
A soccer ball has a mass of 0.40kg. Initially it is moving to the left at 20 m/s, but then it is kicked and given a velocity at 45o upward and to the right, with magnitude 30 m/s.
In a game of pool, the cue ball is rolling at 2 m/s in a direction 30° north of east when it collides with the eight ball (initially at rest). What are the final speeds of each ball after the collision
charge 1 of 4.54 micro-coulombs is placed at the origin. charge 2 of 2.91 micro-coulombs is placed is x -10.6 cm and y
a particle of charge q is fixed at point p and a second particle of mass m and the same charge q is initially held a
Elucidate in detail the image of the "A" you would see as you look into the balloon with "A" facing you.
an automobile weighing 3000 lb is put in motion on a level highway and then allowed to coast to rest. its speed is
How various meters away is a cliff if an echo is heard 0.475 s after the original sound? Assume that sound traveled at 343 m/s on that day.
A volume of 2000 cm^3 of carbon dioxide gas at normal pressure and 20 C is compressed isothermally into a 2 cm^3 container, what is the final pressure inside the container
A point on the rim of a rotating wheel with a 0.37m radius has a centripetal acceleration of 19.0 m/s2. What is the angular speed of the wheel
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