Una onda pasa por una frontera donde su velocidad varia de 6 km/s a 8,5 km/s . Si llega a la frontera formando un angulo de 40 grados... ¿cuál es el angulo de refraccion?

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

The solid that is formed and usually sinks to the bottom of a solution is the