You have a 90 w electrical appliance that is on 24 hours per day. at $0.51 per kwh, how much are you paying daily for electricity to operate this appliance?
show your calculations here:

In which of the following is positive work done by a person on a suitcase

What would be the radius of the earth if it had its actual mass but had the density of nuclei? express your answer to two significant figures and include the appropriate units.

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.