There us no sound in the vacuum of space Why?

Answer all that are correct

A) sound must travel through something that vibrates

B) there is no energy in space

C) there is no air to vibrate in the human eardrum

Fluorine-18, which has a half-life of 110 min, is used in PET scans. a. If 100. mg of fluorine-18 is shipped at 8:00 a. m., how many milligrams of the radioisotope are still active after 110 min? b. If 100. mg of fluorine-18 is shipped at 8:00 a. m.

What is cataclysmic?

Helium, neon, and argon are examples of A) metals B) metalloids C) noble gases D) transitional metals

How does the amount of daylight affect the number of eggs laid by a chicken?

Who is considered the founder of the periodic table of the elements?

Which of the following solute and solvent combinations would be most likely to form solutions? Mark all that apply.

0.402 L = 402 mL 0.0202 L = 20.2 mL 3.6 L = 360 mL 11.1 L = 11,100 mL

Which is one possible way the digestive system works together with other body system

Can anyone tell me how to balance chemical equations

Nomadic people received income from where