Describe one of the ecosystem in southern Africa

A 26.0 kg wheel, essentially a thin hoop with radius 1.30 m, is rotating at 297 rev/min. It must be brought to a stop in 23.0 s. (a) How much work must be done to stop it? (b) What is the required average power? Give absolute values for both parts.

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?

Isaac tosses a twig into a river to figure out how quickly the water is flowing. He observes that the twig travels 21 meters south in three seconds. Based on his observations, what is the velocity of the twig?

How does all body systems work yo maintain homeostasis

If someone weighs 1,059 N, what is their mass

What is the difference between convex and concave mirrors and lens?

Which is the best example of Newton's Second Law of Motion? A student has on roller skates and he decides to push against the railing. He immediately begins to roll backwards. A small ball and a larger ball with greater mass are dropped from a roof.

Which of the following represents a car traveling 20 miles/hour? 40 miles traveled in 2 hours 60 miles traveled in 6 hours 40 miles traveled in 3 hours 10 miles traveled in 5 hours

What is micromegas consider to be

A group of scientists is trying to launch an object into orbit, and the object is traveling at 6500 m/s. Which best explains why the object will not successfully orbit Earth? A.) There is not enough air resistance to keep the object moving. B.