Each bulb has a resistance of 4Ω and the voltage of the battery is 20V. What is the equivalent resistance REQ between point E and point F?
What is the current along Path 1? … Path 2?

What is the current out of the battery?

What is the power of bulb B1? … bulb B2?

What is the equivalent resistance REQ between point E and point F?

What is the current along Path 1? … Path 2?

What is the current out of the battery?

What is the power of bulb B1? … bulb B2?

the picture shows two level circuit with path one is point a and b in the middle is a light bulb B1
the second level path 2 shows lightbulb B2 and point c and d
and on the last level is point e and point f with a batter closer to point f.
point c and point e are not connected as there is an opening in the path

In order to place a satellite into orbit, it requires enough fuel to supply the necessary mechanical energy. into what types of mechanical energy does the fuel get transformed?

1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)

Amass m = 74 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius r = 18.4 m and finally a flat straight section at the same height as the center of the loop (18.4 m off the ground). since the mass would not make it around the loop if released from the height of the top of the loop (do you know why? ) it must be released above the top of the loop-the-loop height. (assume the mass never leaves the smooth track at any point on its path.) 1. what is the minimum speed the block must have at the top of the loop to make it around the loop-the-loop without leaving the track? 2. what height above the ground must the mass begin to make it around the loop-the-loop? 3. if the mass has just enough speed to make it around the loop without leaving the track, what will its speed be at the bottom of the loop? 4. if the mass has just enough speed to make it around the loop without leaving the track, what is its speed at the final flat level (18.4 m off the ground)? 5. now a spring with spring constant k = 15600 n/m is used on the final flat surface to stop the mass. how far does the spring compress?