5. Calculate the speed of a 5 kg object that possesses 260 J of kinetic energy. 6. Calculate the potential energy of a 7 kg object positioned 50 m above the ground.

7. Calculate the height of a 10 kg object that has 780 J of potential

Is the alien theory a scientific claim? why or why not? just took the test it was , : " the alien theory is not a scientific claim because it is not based on valid data, there is no evidence to support it, and it does not come from a reliable source."

The slope of a good speed time indicates ? a. velocity b. acceleration c. direction d. speed

How does the space charge width change with forward and reverse bias? also, calculate the space charge width for a reverse bias of 4v on a silicon pn junction at t = 300k and doping concentrations of na = 5x1015cm-3 , nd = 5x 1016 cm-3 .