Sound 1 has 220 Hz . if the seed of sound is 330m/s what is the wave length of the sound 1

Explanation:

Frequency=200Hz

Speed of sound =330m/s

No. of vibrations=20

Time period=1/ frequency

=1/200

=0.005sec

Total time= Time period × number of vibrations

=0.005×20

=0.1sec

Distance travelled= Speed × time

=330×0.1

=33m

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)