The light that plants absorb to preform photosynthesis has a wavelength that peaks near 675nm. express this distance in (a) millimeters and (b) meters.

A sound wave is produced when a medium begins to blank.

If velocity is positive, which woul vost likely yield a negative acceleration? A final velocity that is faster than an initial velocity. A time that is less than a half hour. An initial velocity that is faster than a final velocity.

Define the phenomena

What form of energy do we receive from the sun

A 5.00 L volume of methane gas is cooled from 298 K to 149 K. If the pressure remains constant, what is the final volume in liters?

Explain why Newton's first law of motion can be difficult to observe in moving objects?

No force is necessary to

A boat has a mass of 4040 kg. Its engines generate a drive force of 4660 N due west, while the wind exerts a force of 880 N due east and the water exerts a resistive force of 1400 N due east. Take west to be the positive direction.

Define the word projectile

Which is not a property of an electromagnetic wave? O It is made of magnetic fields It travels at the speed of light O It is made of electrical fields It carries energy only through matter