16.The diagram shows the construction of the inner liner of a vacuum bottle. How does a vacuum bottle prevent the transfer
of thermal energy:
a. by conduction?
there is no metal to
conduct heat
b. by convection?
there
Vacuum
between Mirrored
glass walls
hot or cold
liquid
c.
by radiation?

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

J. j. thomson’s experiment disproved the theory that an atom

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer