Leucipo y democrito aporte a los modelos atomicos actuales

What are the applications of electromagnetic waves

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.