An 18-ohm resistor and a -ohm resistor are connected in parallel with a -volt battery. A single
ammeter is placed in the circuit to read its total
current. Calculate the total power dissipated in the circuit.
[Show all work, including the equation and
substitution with units.]

Match these items. 1. coulombs __force 2. ohms __emf 3. centimeters __resistance 4. newtons __charge 5. volts __length

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s