One star is emitting primarily visible light and another star is emitting primarily infrared light. which star is hotter?

A wave is turned back when it meets the boundary of the medium in which it is traveling. The wave is said to have undergone 1. reflection. 2. diffraction. 3. refraction. 4. interference.

If you can run 100 meters in 20 seconds, what is your speed?

Using kinetic theory why are soiled and liquids denser than gases

A book is sliding across a horizontal desk and comes to a stop. the books kinetic energy was converted into what type of energy

410 mg convert to mcg

A graph that shows that the pressure of a gas varies inversely with its volume under constant temperature demonstrates A. The pressure law B. The density law C. Charle's law D. Boyle's law

5. Why should the electrons be placed separate from each other (why not together) ?

A battery high rate discharge (load capacity) test is being performed on a 12 volt battery. Technician A says that a good battery should have a voltage reading of higher than 9.6 volts while under load at the end of the 15-second test.

The number of significant digits in the mass of a body measuring 4200.0 kg is 2.

Two forces of intensities 3 N and 4 N act simultaneously on a body. If these forces have the same direction and sense, what is the intensity of the resulting force?