Which of the following is an observation only? * 1 point
A The piece of metal is reed, so it must be hot.
B The street is wet, so it must have rained.
C The table looks like it is made of wood
D The child block is orange.

Amachine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. its acceleration is measured to have an amplitude of 5,000 mm/s with a fre- quency of 10 hz. compute the maximum displacement the machine undergoes during this oscillation.

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?

Place me with this question is my last question