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A violin is tuned by adjusting the tension in the strings. OnBrian’s violin, the “A” string is tuned to aslightly lower frequency than Andrew’s, which is correctly tuned to 440.0 Hz.(a) What is the frequency of Brian’s string if beats of 2.0Hz are heard when the two strings are played at the same time?(b) Does Brian need to tighten or loosen his “A” stringto get in tune with Andrew? Explain your reasoning.
A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. how fast is the student going at the bottom of the slide
question1two metal balls a and b of negligible radius are floating at rest on space station freedom between two metal
Consider the collision between two hockey pucks in the figure below. They do not stick together. Their speeds before the collision are v1i = 27 m/s and v2i = 14 m/s. What is the final velocity of the other puck
Explain how much work does the spring do on the block if the spring is stretched from relaxed length by 15.1 mm as the block is moved?
A pump is required to lift 800 kg of water (about 210 gallons)per minute from a well 14.0m deep and eject it with a speed of 18.0m/s. What must be the power output of the pump
What is the true gravitational acceleration and the centrifugal acceleration and how much work does the girl do to set herself and the merry-go-round into motion?
Tony pulls his cousin Ann in a sled on an icy surface (no friction) with a force of 60N at an angle of 60 degrees upward from the horizontal
The sun is 30 degrees above the horizon. It makes a 48 meter long shadow of a tall tree. How high is the tree
Two thin lenses with a focal length of magnitude 19.5 cm, the first diverging and the second converging, are located 14.6 cm apart. What is the height of the final image
Two thin rods of length L are rotating with the same angular speed ? (in rad/s) about axes that pass perpendicularly through one end. Find the kinetic energies of rod A with its attached particle and of rod B
A 1500-kg satellite initially moving at 10 m/s to the left burns its rocket engine for 4.0 seconds. What was the impulse on the satellite during the burn
what is the minimum acceleration necessary for the plane to take flight.
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