Answer:
The neutral wire and the ground wire.
Explanation:
The black wire is the hot wire
The neutral wire provides the return path for the current provided by the hot wire.
The ground wire is connected to any metal parts in an appliance for example microwave.
A standard electrical outlet has three wires connected to it: the hot, the neutral, and the ground. There is no potential difference between the neutral wire and the ground wire.
Answer: T= 715 N
Explanation:
The only external force (neglecting gravity) acting on the swinging mass, is the centripetal force, which. in this case, is represented by the tension in the string, so we can say:
T = mv² / r
At the moment that the mass be released, it wil continue moving in a straight line at the same tangential speed that it had just an instant before, which is the same speed included in the centripetal force expression.
So the kinetic energy will be the following:
K = 1/2 m v² = 15. 0 J
Solving for v², and replacing in the expression for T:
T = 1.9 Kg (3.97)² m²/s² / 0.042 m = 715 N
Answer:
Option 2 is the correct answer.
Explanation:
We have equation of motion s = ut + 0.5at²
Here u = 0 m/s
So, s = 0.5at²
Distance traveled in first second = 0.5 x a x 1² = 0.5 a
Distance traveled in second second = 0.5 x a x 2² - 0.5 x a x 1²= 1.5 a
Distance traveled in third second = 0.5 x a x 3² - 0.5 x a x 2²= 2.5 a
Distance traveled in fourth second = 0.5 x a x 4² - 0.5 x a x 3²= 3.5 a
The percentage increase in its displacement during the 4th second compared to its displacement in the 3rd second
Option 2 is the correct answer.
Answer:
motivation
Explanation:
Motivation will drive people to satisfy their needs. There are five levels of hierarchy of basic needs that someone needs to fulfill. Physiological needs is the most basic need that vital for survival, such as eating food or breathing. After someone has enough to survive, they will desire safety and security.
After feeling safe, you will want love and belongings. This includes intimacy with family, friends, or sexual. After learning intimacy, someone needs to be respected by others which will give you self esteem. The highest hierarchy is self-actualization or self-fulfillment.
a temperature difference and the presence of electromagnetic waves
Explanation:
For radiations to occur, there must be presence of temperature difference and electromagnetic waves.
Radiation is a form of heat transfer that does not require a medium. Any hot body emits radiation from its surface.
A hot body is not at thermal equilibrium with its environment.
It has some of its electrons in excited state and by so they emit radiations.
Electromagnetic waves that vibrates transversely emits radiations. This is the mode of heat transfer in place for most electromagnetic waves
learn more:
Electromagnetic radiation brainly.com/question/6818046
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