A guitar string with a linear density of 0.0020 kg/m is stretched between supports that are 0.58 m apart. The string is observed to form a standing wave with three antinodes when driven at a frequency of 424 Hz.
(a) What is the frequency of the fundamental mode of vibration of this string?
(b) what is the speed of the wave on the string?

70 give a real life example showing how sensory neurons work with the motor neurons

Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.

Amother used 150 watts of power to raise a 15 newton object in a time interval of 8.0 seconds. through what vertical distance was the object raised ?