A star that is several thousand times brighter than the sun with a temperature lower than 4,000 k would be classified as what kind of star?

The reason we have periods of darkness that we call night is because

Which statements about velocity are true? check all that apply. a. for velocity, you must have a number, a unit, and a direction. b. the si units for velocity are miles per hour. c. the symbol for velocity is. d.

Which law predicts that a projectile will accelerate downward at the same rate as a dropped object? Newton's Second Law of Motion Newton's First Law of Motion Newton's Fourth Law of Motion. Newton's Third Law of Motion

Q. A person sitting in a moving train throws a ball verticallyupwards. How does the train appear to move to an observer. i) insidethe train ii) ouitside the train?

In 1864, Louis Pasteur was asked to investigate diseases afflicting the wine in Arbois, France. He discovered that these diseases were caused by micro-organisms that could be killed by heating the wine to 55 C for some time.

Can Radiation transfers energy by moving matter.

Which of the following decreases the dissolving rate of a solid in water?

Why might a plant that normally grows in one environment not grow well in a different environment?

Cara menghitung daya dorong

Which rock is made mostly of dark, fine-grained silicate minerals, chiefly plagioclase feldspar and pyroxene, and magnetite?