1. What is different about these two trains? Explain how this describes speed and velocity. 80 km/hr West 80 km/hr East​

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied

How can the periodic table be used to predict the behavior of elements?