Write the dimensional formula of gravitational constant and specific heat capacity.​

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc