What is the difference in the speed of sound on a warm day versus on a cold day?

How many galaxies exist?

What is the recommended daily dosage of flouride for a child over three years of age living in an area where drinking water is free fluoride

How big is the universe I get it only God knows because he created all of it meaning everything. That is real.

The drawings show two examples in which a ray of light is refracted at the interface between two liquids. In each example the incident ray is in liquid A and strikes the interface at the same angle of incidence.

An suv is traveling at a speed of 8 m/s. If the suv has a mass of 1,550 kg, what force must be applied to stop it in 8 seconds? A) - 2,700.0 N B) - 2.25 N C) - 3,487.5 N D) - 4,030.7 N

On the Celsius scale what temperature does water boil

Suppose that, while lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears. you then stand, elevating your eyes by a height h = 1.

A night lamp uses a 30 W bulb. If it is left on continuously for 8 hours, how much energy will it use?

If a drag racer wins the final round of her race by going an average speed of 92.5 m/s in 4.5 seconds, what distance did she cover

An airplane flies due west (i. e. in the-X direction) between two airports. For one-quarter of the distance it travels at 650.0 km/h and the rest at 750.0 km/h. What is the average velocity (not speed) of the airplane?