Luhman 16 and wise 0720 are brown dwarfs, also known as failed stars, and are some of the new closest neighbors to earth, but were only discovered in the last decade. why do you think they took so long to be discovered?

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)