Is this testable or non testable? (if I increase the water temperature in one fish tank and keep the other tank's temperature constant, then the fish in the warmer water will be healthier than the
fish in the constant temperature tank.)

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n