Use equation 2 from the lab manual to predict the speed of sound (in m/s) in air at 28o c. never include units with a numerical answer.

               c=34801 m/s

Explanation:

sound wave in air means distance traveled by sound wave in given time period through a medium.

A one degree change in temperature brings 60 cm/s change in speed of sound.

FORMULA:  

                  c= 331.3 + (0.6*Τ)    m/s

 c = is speed of sound

 T= is the temperature

  constant values  are (331.3 and 0.6)

c= 331.3+(0.6*28)

c=34801 m/s

it will be pushed away from the source of the electric field. a negative charge in a cloud induces a positive charge in the ground below the cloud.

explanation:

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.