The table shows the percentages of hydrocarbons that are found in a sample of crude oil. hydrocarbons percentage paraffins 30 naphthenes 49 aromatics 15 asphaltics 6 based on the given information, what is the best classification for this sample of crude oil? an element a pure compound a pure substance a mixture

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

In the first law of thermodynamics, triangle e=q-w, what does q stand for