You short-circuit a 9 volt battery by connecting a short wire from one end of the battery to the other end. if the current in the short circuit is measured to be 18 amperes, what is the internal resistance of the battery?

At t = 15.0 seconds an object with mass 6 kg was observed to have a velocity of ‹ 9, 25, - 9 › m/s. At t = 15.1 seconds its velocity was ‹ 18, 17, 21 › m/s. What was the average (vector) net force acting on the object?

On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 kg/m3, length 84.5 cm and diameter 2.40 cm from a storage room to a machinist. Calculate the weight of the rod, w. Assume the free-fall acceleration is g = 9.80 m/s2.

If a negatively charged rod is held near a neutral metal ball, the ball is attracted to the rod. this happens because

Give the name and formula of the compound formed when a Mn2 + cation combines with a (PO4) 3 - anion. A. Manganese phosphate: Mn3 (PO4) 2 B. Magnesium phosphate: Mn2 (PO4) 3 C. Manganese sulfate: Mn2 (PO4) 3 D. Magnesium sulfate: Mn3 (PO4) 2 E.

The average rate of disappearance of ozone in the reaction is

A German scientist, George Ohm, discovered the relationship between current, voltage, and resistance. This became known as Ohm's law.

The amount of fluid displaced by a submerged object depends on its

What kinds of space and matter can light travel through?

A capacitor is connected to a power source and begins charging. What causes the capacitor to stop charging while it is still connected to the power source?

Do the data for the second part of the experiment support or refute the second hypothesis? Be sure to explain your answer