A 6.0-ω and a 12-ω resistor are connected in parallel across an ideal 36-v battery. What power is dissipated by the 6.0-ω resistor?

P = 216 Watts  

Explanation:

Given that,

Resistance 1,

Resistance 2,

Voltage, V = 36 V

We need to find the power dissipated by the 6 ohms resistor. In case of parallel circuit, voltage throughout the circuit is same while the current is different.      

Firstly, lets find current of the 6 ohms resistor such that,

V = IR

The power dissipated by 6 ohms resistor is given by :

So, the power dissipated across 6 ohm resistor is 126 watts.

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.