Which of the following factors influence the biosphere? temperature water wind solar energy

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz