A 9.0V battery is connected across a 2.2kilo ohm and 6.8kilo omhs resistor across connected in series. Calculate the potential differences across the 2.2 kilo ohm registor.

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.