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The middle C string on a piano is under a tension of 911 N. The period and wavelength of a wave on this string are 3.82 ms and 1.26 m, respectively. Find the linear density of the string.
Two forces, F1 vector and F2 vector, act at a point. F1 vector has a magnitude of 8.40N and is directed at an angle of 65.0 degrees above the negative x axis in the second quadrant. What is the magnitude of the resultant force
A block slides upward on a rough, vertical wall at constant velocity when a force F of 60 N acts on it at an angle ? = 60? to the horizontal. Determine the force of kinetic friction on the block
The drawing (not to scale) shows one alignment of the sun, earth, and moon. find the magnitude of the net gravitational force on the moon
A box slides down a 22° ramp with an acceleration of .92m/s2. Determine out the coefficient of kinetic friction between the box and the ramp.
Speedy Sue, driving at 34.0m/s, enters a one-lane tunnel. She then observes a slow-moving van 175m ahead traveling with velocity 5.40 m/s. Sue applies her brakes but can accelerate only at 2.00 m/s2 since the road is wet. Will there be a collision..
An electric dipole includes a charge of 4 ?C and a second charge. What is the total charge of the dipole
Horse races once around a circular track in a time of 176 s, with a speed of 26 m/s. What is the radius of the track.
You are playing raquetball at the rec center. When you are 10 m away from the wall you hit a ball 16 m/s towards the wall at an angle of 30 degrees. How high above the launch point does the ball hit the wall
assuming the acceleration is constant throughout each time interval (but not necessarily the same in both intervals), what distance does the shuttle travel during the interval from 7.00 s to 1.00 min.
How high is the top of the ski lift relative to base.
A ball is thrown from the top of a building upward at an angle of 46 degrees to the horizontal and with an initial speed of 30m/s. the speed of the ball just before it strikes the ground
The friction force in the sled is 1000N and the angle between the two ropes is 20 degrees. Explain how hard must each player pull to drag the coach at a steady 2.0 m/s?
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