After taking the mass of the dried green crystals, transfer them to a scintillation vial wrapped with aluminum foil. Why

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n