A sound wave of frequency

1210 Hz has a wave speed of

343 m/s. What is the wavelength

of the wave?

(Unit = m)

Which standard unit is used to express frequency?

You are in a hot, dense place. You are surrounded by nuclear reactions that are rapidly fusing hydrogen into helium. You notice that your surroundings are cooling and rapidly dropping in density. Within about 5 minutes, the fusion reactions stop.

An observer (O) spots a plane (P) taking off from a local airport and flying at a 29° angle horizontal to her line of sight and located directly above a tower (T). The observer also notices a bird (B) circling directly above her.

1. Productivity is the combination of A. efficiency and energy B. efficiency and attitude C., effectiveness and resources. D. efficiency and effectiveness

Why do scientist make models?

Name two instruments that are based on the law of flotation

When the drag force on an object equals the force of gravity what occurs?

When two objects collide, they exert forces on each other that change momentum a. law of conservation of momentum b. recoil c. relation of Newton 3rd law to momentum d. closed system

How to convert 125 cubic centimeters to cubic miles

When does water reach its lowest density?