The average hydrogen bond energy in DNA is 1.46x10-19J a) What is the minimum wavelength of light is needed to break this bond?

b) Where on the electromagnetic spectrum does this photon lie?

Evaluate this exponential expression,8. (2 + 3)2 – 42

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass