Science

How do you do the following questions: a) The temperature of a 9.25L sample of oxygen gas is changed from 200K to 600 K, calculate the new volume of the gas. b) 35.0mL of helium gas is heated from … [Read more...]

A 30.0-cm-high inverted image is produced when an object is placed 15.0 cm from a converging mirror with a focal length of 12.0 cm. What is the height of the object? it is a multiple choice question … [Read more...]

If it's true that all people originated from Africa or the Middle East and that skin pigment developed due to geographical location, i.e. black people originating from Africa are black due to the … [Read more...]

a student walks 50m due East. realizing the he forget his book, he decided to go back to his house. He traveled 35m due West wen he meets his brother carrying his book.Getting the book from his … [Read more...]

So yeah we have a project where we need to make an olympic stadium where the roof retarcts. We were planing to use magnets to make our roof move and we were just wondering if the magnets on the roof … [Read more...]

It appeared yesterday on yahoo.ca about a school in northern Quebec, Canada not being allowed to teach about evolution. … [Read more...]

I was in bed this morning and I was watching my ceiling fan spin and after starring at it for a couple of seconds it appeared to slow down and then it even looked like it went the opposite direction. … [Read more...]

If and P.E. = mgh what is the relationship of velocity to the ratio of kinetic energy (K.E.) to potential? … [Read more...]

I need some websites that have proof of there information; Example; NASA. Example of no proof ; Wikipedia. … [Read more...]

put in mind the possibility of my dad being born during a leap year! … [Read more...]