Asound wave has frequency of 430 hz in air . which of these is closet to the wavelength of this sound? ( the speed of sound in air is 343 m/s.) a. the height of a skyscraper b. the length of car c. the height of a tree d. the width of highway e. the height of a desk

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented.b)scientists had not completely finalized their results, which took 30 years.c)cigarettes were cheaply available and media channels were very inefficient.d)cigarette manufacturers were trying hard to bring an alternative into the market

Aracecar driver has to hold on tightly when going around a banked curve. approximately what is the centripetal force on a 2220.0 kg car going around a circle with a diameter of 190.0 meters at 25.0 m/s?

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point