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A skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 70.3 kilogram water skier has an initial speed of 6.10 m/s. Later, the speed increases to 11.3 m/s. Find the work done by the net external force acting on the skier.
A ball swings in a vertical circle at the end of a rope 1.30 m long. When the ball is 37.3 ° past the lowest point on its way up, Sketch a vector diagram showing the components of its acceleration
if a magnetic compass is placed between the plates of a fully charged capacitor, why wouldn't the compass will align itself along the electric field lines.. ... please explain in detail.
The spacing between certain planes in a crystal is known to be 0.30nm. Find the smallest angle of incidence
A vibrating source generates a harmonic wave on a string underconstant tension. If the power delivered to the string is doubled, by what factor does the speed change
in the michelson-morley experiment the arms of the interferometer were effectively 11m each and the wavelength of the
What is the work done by the tension in the cable.assume the roller coaster (h1 = 34 m, h2 = 13 m, h3 = 30) passes point A with a speed of 3.10 m/s. If the average force of friction is equal to one third of its weight, with what speed will it reach..
The lowest pedal note on a large pipe organ has a fundamental frequency of 16 Hz, What is the length of the open-closed pipe that makes that note
a bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.0 m long. the bowler hears
A communications satellite is in a synchronous orbit that is 3.6 x107 m directly above the equator. The satellite islocated between two cities almost on the equator that are separated by a distance of 3.5 x 106 m.
You need a transformer that will draw 16 W of power from a 220 V (rms) power line, stepping the voltage down to 12 V (rms) What will be the current in the secondary coil? Express your answer to two significant figures and include the appropriate un..
A ball whose diameter is 6 cm is placed 70 cm in front of a convex spherical mirror. If the focal length of the mirror is -30 cm, what is the diameter of the ball as viewed in the mirror
When 2.50 Amp passes along a 2.60 meter length of straight wire that is entirely immersed in a uniform B-field, Find how strong is the field
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