Me!
if the mass of one object is tripled, and the distance between them is doubled, how does the force of gravity change?
a. force is multiplied by 4
b. force is divided 3
c. force is multiplied 3/4
d. force is divided 3/4

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.