A skier has an acceleration of - 2.5 m/s2. How long does it take her to come to a complete stop from a speed of 18 m/s?

In a Do‑Nothing Machine, two sliders are confined to perpendicular channels and are connected by a rod. The rod can be rotated, causing the sliders to move back and forth in their respective channels.

A hydrogen atom has its electron in the n = 6 level. the radius of the electron's orbit in the bohr model is 1.905 nm.

Which of these is a part of lithosphere A. inner core B. outer core C. all of the mantle D. crust and outer part of the mantle really need the answer

A baseball pitcher throws at 95 mile/hr at a hitter 60 feet 6 inches away. How long does it take for the baseball to reach the hitter?

What is an isotope? A. Atoms of the same element that have different numbers of neutrons B. Atoms of different elements that have different numbers of neutrons C. Atoms of the same element that have different numbers of protons D.

The length of the hypotenuse of a 30°-60°-90° triangle is 8. What is the length of the longer leg? Enter your answer as an exact number (not rounded).

One similarity between work and power is that in order to calculate both you must know

Describe the relationship between volume, mass and density.

How does an elecrical power plant work?

William meets Kate. They have similar facial features. Based on the effects of similarity on attraction, which of the following is most likely to be William's reaction? A. William will be more likely to trust Kate than he would a stranger. B.