A student believes that the reason an object’s appearance alters when it is submerged in water is because light from the object passes from water to air, and that these substances have different densities. What evidence could be collected that would help to test the validity of this theory? Add objects of different shapes and sizes to the water.

Replace water with other clear fluids of different densities.

Repeat the procedure with different-shaped containers.

Take measurements of the object from different angles.

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