Answer:
Hello There!!
Explanation:
There is no work done against the force of gravity because the angle of displacement and the direction is 90°.
hope this helps,have a great day!!
~Pinky~
Explanation:
Examples for effect of force - example
1) Can change the state of an object(rest to motion/ motion to rest):For example, pushing a heavy stone in order to move it. 2) May change the speed of an object if it is already moving. ... 3) May change the direction of motion of an object.
A toaster draws electric current ( electrical energy) from a wall outlet and converts these moving electric charges into heat (thermal energy) in the filaments that turn red hot to cook your toast. I hope that helps you
Answer:
Constructive interference
Explanation:
- This is an example of a standing wave produced when two ends of a string are oscillated in the same plane. The displacement of of point on two ends oscillates vertically.
- We are given that two pulses move along the string each coming towards each other and meet at a common point ( P ).
- Each pulse have their own magnitude or displacement in the vertical plane. If the pulses are to meet at a common point at the same instant, then they interfere with each other constructively.
- Where constructive interference of two pulses is the addition of magnitudes of induvidual pulses and form a single puls of the constructed magnitude.
magnitude ( New pulse ) = magnitude (Pulse 1) + magnitude (Pulse 2)
Answer:
0.00095%
Explanation:
Mass of coal needed every day = Mass needed every hour × 24
Thermal energy released per hour = Mass × Heat of combustion
Power released per second = Energy / 3600 seconds
Thermal efficiency = (Electrical power / Mechanical power) × 100
Thermal efficiency of the plant is 0.00095%