Please answer Today, quickly, and no links. What is the mass of the rock? screenshot will help answer (key: g = grams)
A. 335.6 g
B. 350.6 g
C. 354.6 g
D. 356.0 g

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Could someone . i have tried to solve myself but my calculation is off

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount