Small number written below a symbol in a chemical formula

We have starin which is 0.4 and area is 0.05 what is sigma

The table shows the changes in velocity for several different cars. Each change takes place over a 10-second interval. Which cars are either speeding up or slowing down?

Juan aims his boat directly across a river flowing at 8mi/hr. juan's boat travels at 6 miles/hr in still water. how was does juan travel relative to shore

The un-ionized form of an acid indicator is yellow and its anion is blue. the ka of this indicator is 10â'5. what will be the color of the indicator in a solution of ph 3?

When do sea breezes occur? A.) Daytime B.) Nightime C.) Both Day and Night Time D.) At Thermal Equilibrium

The mass of the Sun is 1.99 * 1030 kg. Jupiter is 7.79 * 108 km away from the Sun and has a mass of 1.90 * 1027 kg. The gravitational force between the Sun and Jupiter to three significant figures is * 1023 N.

You measure the magnetic field of a long, current-carrying wire to be B is equal to start fraction 50 times mu naught over pi end fraction at a distance of r = 7.5 cm. How much current is running through the wire?

In any food chain or web, the original source of energy is

Which organisms develop gills from pharyngeal arches and later develop lungs to breathe on land

How much energy (in joules) is required to evaporate 0.0005 kg of liquid ammonia to vapor at the same temperature?