Which of the following can supply the energy for modern home heating systems?

electricity
biomass
solar
geothermal

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?