While on vacation you visit a canyon. You shout at the far wall and the sound
returns after 6.00 seconds. The speed of sound that day was 345 m/s. The sound
you made had a frequency of 600 Hz. What was its wavelength? What was its
period?

Convection currents are caused by differences in what two things?

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?