Ionization energy is that energy !!!
The question is going along fine, and then suddenly "groups of two" get thrown in. What that means is not clear at all.
Here's a solution assuming that 8 heater wires are all in parallel:
-- The resistance of each wire is 4 ohms.
-- If eight resistors, each 4 ohms, are in parallel, the <em>total resistance is 0.5 ohm.</em>
-- Current = (voltage)/(resistance)
Current = (12 volts) / (0.5 ohm)
<em>Current = 24 Amperes.</em>
Power dissipated by the heater = (voltage) x (current)
Power = (12 volts) x (24 Amps) = 288 watts, a nice toasty heating pad.
Kinetic energy:
1) A car traveling down the road has less kinetic energy than a semi-truck and traveling at the same speed because the car's mass is much less than the truck's.
2) A river flowing at a certain speed possesses kinetic energy because the water has a certain mass and it also has velocity.
3) An insect flying has a small amount of kinetic energy because its mass and velocity are relatively small.
Potential Energy:
1) The food we eat has chemical potential energy because as our body digests it, it provides us with energy for basic metabolism.
2) A stretched spring in a pinball machine has elastic potential energy and can move the steel ball when released.
3) When a crane swings a wrecking ball up to a certain height, it gains more potential energy and has the ability to crash through buildings.
Answer:
160kg m/s
Explanation:
momentum = mass * velocity
here given mass = 80 kg and velocity = 2m/s
so 80 * 2 = 160kg m/s
Answer:
0.7593 seconds
Explanation:
A student waiting at a stoplight notices that her turn signal, which has a period of 0.80 s, makes one blink exactly in sync with the turn signal of the car in front of her. The blinker of the car ahead then starts to get ahead, but 14 s later the two are exactly in sync again. What is the period of the blinker of the other car?
Speed:
If a car is moving on a track and car covers x meter distance in y second time. Now the car driver want to know the distance covered by the car in unit time. So the distance covered in unit time will be calculated by dividing x meters by y seconds. This quantity is known as the speed.
Given:
The period of the blinker of the student car is t1 = 0.80
The period after which both blinks sync is t2 = 15seconds
Let the period of the blinker of the other car be t2
The blinker of the student car is 1 second and can be calculated as:
Student car blink/ sec = 1/0.80
The blink of the other car is in 1 second and can be calculated as:
Other car blink/sec = 1/t2
According to the condition,
Other car blink/sec - students car blink /sec = 1/15
1/t2 - 1/0.80 = 1/15
1/t2 = 1/15 - 1/0.80
t2 = 0.7593
t2 = 0.7593second