Sound from a source vibrating at frequency 200 Hz travels at the speed of 300 m/s in air. Wavelength of the sound is (in m/s) a) 15
b)1.5
c)150
d)6​

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?

Juliette sets the initial velocity to +10 m/s, the acceleration to zero, and clicks “start.” how can shakina describe the subsequent motion of the car juliette controls?