When all parts of a circuit are composed of conducting materials, the circuit is said to be
a. shorted.
b. parallel.
c. open.
d. closed.

An object has a weight of 500 on earth what is the mass of this object

Asher cycles 12 miles in 16 hours. what is his speed?

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?