Approximately how long does it take a star the size of the sun to become a red giant?

a) 2 million years

b) 10 million years

c) 45 billion years

d) 25 million years

What is the period of a soundwave whose wavelength is 20.0 m? Use values from the book and show ALL of your work.

Two eagles fly directly toward one another, the first at 15.0 m/s and the second at 21.0 m/s. both screech, the first one emitting a frequency of 2800 hz and the second one emitting a frequency of 3800 hz.

Which of the steps below is not imporant for wellness

If a substance is found to be reactive flammable soluble and explosive what observation is also a physical property

A cross country skier can complete a 7.5 km race in 45 minutes. What is the skiers's average speed

An electron and a proton, starting from rest, are accelerated through an electric potential difference of the same magnitude. in the process, the electron acquires a speed ve, while the proton acquires a speed vp. find the ratio ve/vp.

Why water is matter? what is the reason

Restate newton's first law in terms of acceleratin

What step precedes the onset of hydrogen fusion in a star?

Manuel is holding a 5kg box how much force is he exerting on it