A boy and his skateboard have a combined mass of 65 kg. What is the speed of the boy and skateboard if they have a momentum of 275 kg •?

What color is absorbed when we see a yellow flower?

All the following statements are true. Which one is most important in explaining the tremendous tidal heating that occurs on Io?

Which animal in the world kill 3000 people per year a. tiger b. stinray c. scorpion d. mosquito

A 14gram ovarian tumor is treated using a sodium phosphate in which the phosphorus atoms are the radioactive phosphorus 32 isotopes with half life 14.3 days and which decays via beta emission with energy of 1.71Mev.

43 Which of the following lists the particles of matter in order from lightest to heaviest? A. electrons, neutrons, quarks, protons B. quarks, electrons, protons, neutrons C. neutrons, quarks, electrons, protons D.

Give an example of ionic and covalent bond, and explain and make an example for each.

Which of these is the best reason for proper nutrition? A. To ensure that you will be skinny B. To protect yourself against certain diseases C. To improve your intelligence D. To ensure that you will get good grades

And object has a mass of 15g it has a volume of 7.5ml. find the density of the object.

I need this answered quickly. is the branch of science for naming and classifying organisms based on their natural relationships? A-physics B-taxonomy C-genetics D-biology

For a fixed amount of gas, if the absolute temperature of the gas is doubled, what happens to the pressure of the gas?