Evaluate the important of radioactive isotopes in determining the age of earth

How would doubling the made of an object change the objects potential energy

Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3

Acharged particle moves in a circular path in a uniform magnetic field.which of the following would increase the period of the particle's motion? check all that apply.increasing its chargeincreasing its massincreasing the field strengthincreasing its speed