Convert 55.0 miles per hour to meters per minute. (5280 ft = 1 mile; 2.54 cm = inch)

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Explain that newton first law,second law and third law of motion?

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