Which are rules for writing chemical formulas? Check all that apply. identify the positive ion and charge balance the charges write the negative ion first identify the negative ion and charge use the number of ions as the ion's superscript

What important discovery was made by edmond halley and alexis clairaut, using newton's ideas of mathematics and gravity?

What kind of motion for a star does not produce a Doppler effect? Explain.

What two material are produced during photosynthesis

A machine has a mechanical advantage of 4.5. What force is put out by the machine if the force applied to the machine is 800 N?

A moderate force will break an egg. However, an egg droppedon the road usually breaks while one dropped on the grass usuallydoesnt break. THis is because the egg dropped on thegrass ... ? A. has a greater change in momentum B.

Which describes a property shared by ultraviolet light and X-rays? A They are both transverse waves. B They share the same wavelength. C They contain less energy than visible light. D They both require a medium to travel through.

What is the potential energy called that is associated with objects that can be stretched

Which of the following is not a current use of radioisotopes? medical diagnosis sterilization of equipment detection of leaks in building structures light fixtures

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 revolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates

A body has translatory motion if it moves along a