hiker throws a rock from ground A level at 11.3 m/s at an angle of 26° over a river that is 6.27 m wide. What height is the rock at when it reaches the other side of the river?

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil

What happens to an isotope during radioactive decay?