How much time does it take an airplane to accelerate from rest at a rate of 6.0m/s^2, for a distance of 432 m? A.) 2592 s
B.) 12 s
C.) 125 s
D.) 72 s

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve