Sashia is about to conduct an experiment. she has set up four beakers. in the first beaker, she plans to add a single ice cube. in the second beaker, she plans to add an ice cube split in half. in the third beaker, she plans to add an ice cube split into quarters. in the fourth beaker, she plans to add a crushed ice cube. sashia’s laboratory setup was mostly about

Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

Which sound characteristic is not affected by the relative motion of an object