Which statement describes planetesimals? Select 3 options.
A) They are the origins of planets.
B) They formed from gas and dust.
C) They were created during the Big Bang.
D) They are believed to have developed in debris disks.
E) They contain 98 percent of matter in the solar system.

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass

Two waves maximally constructively interfere at a point in space. among the options below, select the possible value of their phase difference at that point in space. a. zerob. πc. π/2d. not determinable by the information provided

Select the correct lewis structure for fluorine which is group 7a element?