is the speed of a radio wave in the air, less than, greater than, or the same, to the speed of a sound wave in the air

Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76 cm². Now suppose you are asked to enter the answer to two significant figures.

In Classical Physics, the state of the system at a given time is completely determine by: The mass and velocity. Velocity and momentum. Coordinates and the momentum.

The work done when a crate weighing 13 N is carried 13 m from one loading dock to the next is? joules.

When the diaphragm contracts, air pressure in the chest increases. True or False?

How much energy is evolved during the reaction of 48.7 g of Al, according to the reaction below? Assume that there is excess Fe2O3. Fe2O3 (s) + 2 Al (s) → Al2O3 (s) + 2 Fe (s) ΔH°rxn = - 852 kJ

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.

Stephen buys a new mop he travels 3 km south and the. 4 km east and then 3km north how far does he need to go to get back. To where he started

The elements with the largest atomic radii are found in the

Students will explain, distinguish the difference between the 4 states of matter

Name one way that a mixture can be separated