Juan is standing on the street. an ambulance moves toward him and then passes by. what best describes the pitch that juan heats? (a )the pitch remains constant as the ambulance moves toward and then away from juan. (b) the pitch increases and decreases in a repeated pattern as the ambulance passes juan. (c) the pitch drops to a lower pitch once the ambulance passes by juan. (d) the pitch increases to a higher pitch once the ambulance passes by juan.

Ineed ! using proper grammar, spelling, and punctuation, write at least one 5 sentence paragraph describing 3 ways we use the elements of the electromagnetic spectrum (ems) in our everyday lives.

Which basic property determines a colored light's placement on the spectrum of visible light? a. speed b. frequency c. amplitude d. velocity

One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.