A cyclist and bike have a total mass of 105kg and a speed of 12m/s. Calculate the kinetic energy.

What is the relationship between wavelength of light and the quantity of energy per photon?

Five structural isomers have the formula c6h14. where needed, draw the structure and give the iupac name of all five isomers.

Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano. the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? positive force → balanced force → negative force negative force → balanced force → positive force positive force → unbalanced force → negative force negative force → unbalanced force → positive force