The planet earth travels in a circular orbit at constant speed around the sun. what is the net work done on the earth by the gravitational attraction between it and the sun in one complete orbit? assume that the mass of the earth is given by me, the mass of the sun is given by ms, and the earth-sun distance is given by res.

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?