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Through a thunderstorm, winds with a speed of 47.0 m/s blow across a flat roof with an area of 785 m2.
a) Is the force exerted on the roof in the upward or downward direction?
b) Discover the magnitude of the force exerted on the roof as a result of this wind.
you are watching a pier being constructed on the far shore of a saltwater inlet when a blasting occurs. you hear the
A 16 µF capacitor and a 23 H inductor are connected in series with a 60 Hz source whose rms output is 119 V. Find the voltage drop across the inductor
Children sled down a 44m -long hill inclined at 23 degrees. At the bottom, the slope levels out. how far do the children slide on the level ground
The graph shows the net external force component Fcos along the displacement as a function ofthe magnitude s of the displacement. The graph applies toa 71.3-kg ice skater. How much work does the net force component doon the skater from
A small 2.97 g plastic ball is suspended by a 20.2cm long string in a uniform electric field of 1460 N/C. The acceleration due to gravity is 9.8m/s^2 and the Coulomb constant is 8.999*10^9N.m^2/C^2. Is the ball's charge positive or negative?
A slit with width 0.22 mm is located 12 m from a screen. If light with λ = 550 nm is passed during this slit, what is the distance among the central bright fringe and the third dark fringe on the screen?
determine the properties required. show all work.a. substance ammonia given t 0.00degc and x 0.200 find v ?b.
How long would it take for an object dropped from the Leaning Tower of Pisa (height 54.6 meters) to hit the ground, and how fast was the object traveling at the moment of impact
A 1.3 m length of wire carrying 5.9 A of current toward the south is oriented horizontally. Estimate the magnitude of the magnetic force on the wire due to the Earth's magnetic field of 5.5 ? 10-5 T at this point
A camera has a lens w/ a 52 mm focal length and a sensor array that measures 4.82mm x 3.64 mm, how far away from the animal will you have to stand
Two objects, A and B, are rubbed together. As a result, object A acquires an excess negative charge while object B becomes positively charged. In comparison to their masses before the charging process, you can say that
The only force on a 4.0-kg body as it moves along the x axis is given by F(subscript "x") = (14 - 6.1x) N, What is the maximum kinetic energy attained by the body
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