The speed of sound in air at 0 degree Celcius is 331 m/s. It increases by 0.6 m/s every 1 degree rise in temperature. While hiking through a canyon, Scary Carrie lets out a scream. An echo (reflection of the scream off a nearby canyon wall at a distance of 220 m) is heard 1.26 seconds after the scream. Calculate the temperature of air. Show all work.

Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.

What is the most useful equation for electric power?

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.