Which statement is true about wind energy? A) It is clean and non-polluting. B) It is only effective near water. C) It is costly and hard to produce. D) It is not as useful as fossil fuels.

What is the force exerted by a solid surface that opposes gravity?

put the following in order of a full lunar month: full moon, new moon, 1st quarter, waxing gibbous, waning gibbous, waxing crescent, third quarter, waning crescent

What happens when a vector is multiplied by a scalar? a) It gets rotated in the plane b) It gets longer c) It turns into a scalar d) It gets either longer or shorter, but does not change direction

Object 1 and 2 attract each other with a electrostatic force of 36.0 units. If the charge of object 1 is changed to four times the original value, then the new electrostatic force will be

What are six traits of a good scientific observer

Which of the following is evidence used to support the Big Bang Theory? background radiation increasing distances between galaxies both of the above

Which of the following statements about noncovalent bonding interactions is NOT true? Van der Waals interactions, also known as dispersion forces, are the weakest of the attractive noncovalent bonding interactions.

Does a rising GDP benefit everyone

You have a neutral balloon. What is its charge after 12000 electrons have been removed from it? The elemental charge is 1.6 * 10-19 C. Answer in units of µC.

Which formula can be used to find the x-component of the resultant vector?