Why is Loeb developing equations about stars? a: to identify when stars could support life

b: to find stars like our own sun

c: to help project messages to stars

d: to determine how long our sun will support life

How is 0.00235 expressed in proper scientific notation? a. 2.35 × 10-3 b. 0.235 × 10-2 c. 2.35 d. 2.35 × 103

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

In which situation can a mixture always be called a solution