A 2.61 kg block slides DOWN a 15.0° incline with
mk=0.220.
What is its acceleration?
(Unit = m/s²)

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

Debris produced by mining is called