Amotorboat maintained a constant speed of 1414 miles per hour relative to the water in going 4545 miles upstream and then returning. the total time for the trip was 7.07.0 hours. use this information to find the speed of the current.

What is the fate of the electrons that interact with a specimen in an electron microscope?

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f