Calculate the pressure if force acting on an object is 1.69 × 105 n and the area on which the force is acting is equal to 1.3 mm × 1.3 cm. pls answer quick answer dont copy paste

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

Hydrogen and helium are both members of?

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?