Abar of brass is used to conduct heat between two heat reservoirs at temperatures of 20 degrees c and 80 degrees c. the bar has a square cross section with edge 1.0 cm. the length of the bar is 70 cm. what is the rate of thermal conductivity?

your answer is, orbit around the nucleus

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.

the answer is the index of refraction of the second medium is higher. i just took the test.