Debbie plots a graph to show how the mass of aluminium rivets affected the distance that the cup moved down. using the image attached, find out why the graph stayed flat with masses greater than 40 g.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b. what is the wavelength of the wave? c. what is the amplitude of the magnetic field? d. what is the intensity of the wave?

Ionic compounds can be readily dissolved in water because the high dielectric constant of water screens and decreases the force between the oppositely charged ions.