A body weighs 100newtons and 80newtons when submerged in water. calculate the upthrust action on the body

If a simple machine reduces the strength of a force, what must be increased?

Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=

Which of the following list the divisions of the geologic time scale in order from longest to shortest