Pls help, will give brainliest!! An airplane pilot tries to fly directly east with a velocity of 800.0 km/hr. If a wind comes from the southwest (45 degrees) at 80.0 km/hr., what is the relative velocity of the plane to the earth's surface?

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?