A woman is deciding between three alarm systems to install in her home. Each alarm system produces a wave with a different wavelength and decibel level, as shown in the following table.

1st number: Wavelength (cm)

2nd number: Decibels (dB)

Alarm A

8

100

Alarm B

32

80

Alarm C

128

60

If the woman wants the alarm with the lowest pitch, which alarm should she choose? Explain your answer.

Based on the data in the table, which alarm produces sound waves with the greatest amplitude? Explain your answer.

Comedians like to joke that the reason we haven’t been visited by intelligent life from elsewhere in the universe is that aliens have been monitoring earth’s broadcasts of intellectually embarrassing tv programs, like gilligan’s island, fear factor, the jersey shore, and the jerry springer showand so consider us far too primitive to merit a visit. let’s check the assertion that aliens could have been receiving them. tv programs are broadcast at a frequency of about 100mhz with about 100kw of total power in 30frames per second, which emanatesroughly uniformly in all directions. assume that interstellar space transmits these broadcasts without attenuation. no matter how smart they are, aliens would require at least one photon per frame to interpret our signals. findthe number of photons per unit time per unit area reaching a receiver on a possible planet in the nearest star system, which is about 4 light-years away (a light-year is the distance light travels in a year). if aliens aimed a receiver or detector directly at earth, how big (in diameter) would it have to be to receive a photon per frame

The government has declared that a hurricane is likely to hit the east coast. which government division is part of acf and provides guidance to citizens? a. job opportunities for low-income individuals b. office of human services emergency preparedness and response c. assets for independence d. low-income home energy assistance program

What’s #16 asking and how do i solve it?