Which of the following statements accurately describes the properties of gases?

a. gases expand very easily due to a property called compressibility.

b. a change in the pressure of a gas results in a more significant change in volume than it would in a liquid.

c. applying an external force to an enclosed volume of air will allow the air to expand and the volume to decrease.

d. when the mass of gases remains constant, the gases have low compressibility and low expansibility.

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

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?

Adiagram show how a converging lens can produce a real image and virtual image