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

The rechargeable batteries for a laptop computer need a much smaller voltage than what a wall socket provides. Therefore, a transformer is plugged into the wall socket and produces the necessary voltage for charging the batteries.

Do tectonic plates cover most of earth but not all of it?

20 pts easy question Which question could Not be answered by using the scientific method? Do girls grow faster than boys? Does this shirt look bad? Is cooked meat better for a dog than dog food? Which US city gets the most rain?

parallel-plate air capacitor is made from two plates 0.070 m square, spaced 6.3 mm apart. What must the potential difference between the plates be to produce an energy density of 0.037 J/m3?

An alternating current consists of charges that?

What is the weight of an with a mass of 32kg

The index of refraction of silicate flint glass for red light is 1.620 and for violet light is 1.660. A beam of white light in this glass strikes the glass-air interface at a 25.50∘ angle of incidence and refracts out into the air.

The locations of the major pressure and wind systems on the earth:

Which statements correctly describe the properties of heat? Select all that apply. Heat is an essential component of life on Earth. Heat is energy that flows from one object to another. Heat flows from a hotter object to a colder one.

A book is sitting on a table at rest. Which of the following best describes the forces acting on the book? A.