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Two displacement vectors A and B, with A+B being 57.0 m, 25.0A?° north of east, and A-B being 33.0 m, 35.0A?° west of south. Find the components of A and B.
an lady bug walks 20.0 cm in a direction of 30.00 north of east. she then turns and walks 30.0 cm north turns and walks
Within cells, small organelles containing newly synthesized proteins are transported along microtubules by tiny molecular motors called kinesins. What force does a kinesin molecule need to deliver in order to accelerate an organelle with mass 0.0131 ..
Four stars with equal masses m=1.99×1030 kg are located at the corners of a square, What is the magnitude of the net force on the star at the origin
A plane touches down for a landing with a ground speed of 120 mi/h (53.7 m/s). What is the plane's acceleration while stopping
To verify her suspicion that a rock specimen is hollow, a geologist weighs the specimen in air and in water. What fraction of the specimen's apparent volume is solid
Three resistors are connected in series across a battery, What is the greatest voltage that the battery can have without one of the resistors burning up
A merry-go-round makes 27 revolutions in a 3.5min ride. What is its average angular speed in rad/s? What are the tangential speeds of two people 3.8m and 4.5m from the center, or axis of rotation?
A 3.27-m3 tank contains 100 kg of nitrogen at 175 K. Determine the pressure in the tank, using
A car moving with constant acceleration travels the distance between two cones located 69.2 meter apart in 3.17 second. Determine its velocity as it passed the first cone
Two long straight wires are carrying current out of this page. Make the plane of this paper the x-y plane, and put one wire at the origin with 5 A., find the force per unit length on that wire
Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to three times the earth's radius of 6.38 106 m
A 1400-kg sports car accelerates from rest to 95km/h in7.4s What is the average prower delivered by the engine
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