The mass of a penny is measured on two different balances, an analytical balance and a top loader balance. The mass of the penny is 2.4881 grams according to the analytical balance. The mass of the penny is 2.49 grams according to the top loader balance . Which balance has a higher sensitivity?

Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.