Which type of wave does not require a medium to travel through?
a.
wave created by x-rays as they create an image of a bone
b.
wave created by plucking the strings of a guitar
c.
wave created by dropping a pebble in water
d.
wave created by squeezing and releasing a spring

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.

In a good thermo flask the main cause of heat loss is