An engineer weighs a sample of mercury (ρ = 13.6 × 103 kg/m3 ) and finds that the weight of the sample is 6.0 n. what is the sample’s volume? the acceleration of gravity is 9.81 m/s 2 . answer in units of m3 .

What happens to the light rays when they hit the specimen?

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?