Find the normal force exerted on the crate by the elevator
A crate (140 kg) is in an elevator traveling upward and slowing down at 6 m/s2. Find the normal force exerted on the crate by the elevator. Assume g = 10 m/s2.
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A balloon with a radius of 14cm and an electric charge of 3.75x10^-9 C is brought within the electric field of the larger balloon so their centres are 40.0cm apart. Determine the magnitude of the electric force exerted by this electric field on th
A small ball of mass 51 g is suspended from a string of length 89 cm and whirled in a circle lying in the horizontal plane. If the string makes an angle of 31degrees with the vertical, ?nd the centripetal force experienced by the ball. The accele
Two 450N blocks are connected by a light, flexible cord passing over a frictionless pulley. If the coefficient of friction under the blocks is 0.15. Find the tension in the cord.
What is one important distinction you could not overlook making when critically evaluating the information provided in these materials about the Boston Tea Party? Clarify the importance of that distinction?
A 1140-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Using the data shown in the figure, find (a) the magnitude of the tension in the wire
An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of 4.00 mT. The angular momentum of the electron about the center of the circle is 5.50 10-25 J·s.
What kinds of emotions and feelings did you experience during radical change in your life? Was there stress associated with the change?
What velocity would a proton need to circle the Earth 1100 km above the magnetic equator, where the Earth's magnetic field is directed horizontally north and has a magnitude of 4.00 10-8 T?
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