If light travels at 3.00 x 10⁸ m/s, how long does it take light from lightning to reach your house if the bolt was 6,400 m away from your house?

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,ℓ=2n=4,ℓ=2 electronselectrons =6,ℓ=ℓ=−1n=6,ℓ=2,mℓ=−1