Planet z has diameter 1.8 × 107 m. on the planet's surface, the acceleration due to gravity is 19.5 m/s2. what is the mass of the planet? note: the constant of universal gravity (g) equals 6.674 × 10-11 n ⋅ m2/kg2.

The metal wire in an incandescent lightbulb glows when the light is switched on and stops glowing when it is switched off. this simple process iswhich kind of a change? a.a physical changeb. a chemical changec. a nuclear changed. an ionic change

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z