The wave equation says that a waves is equal to its wavelength times its frequancy

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

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

What do you think car designers do if the damage caused by a crash test is too severe?