Answer:
The environmental problems directly related to energy production and Electricity is a secondary energy source that is generated producedfrom primary energy sources:
hope that helps im new so have a good day (:
Payback time is when someone has to take the consequences of what they have done in the past. You can use this expression to talk about good or bad consequences.
The Bernoulli's principle is <span>the principle in hydrodynamics that an increase in the velocity of a stream of fluid results in a decrease in pressure.</span>
Answer:
1. The momenta of the skaters after the shove are equal in magnitude but opposite in direction. Skater Z's mation is an ex. of recoil.
Explanation:
The moment is preserved before and after the push (impact), this is called conservation of the moment, skater x will move in the direction of the force of the push, but skater z will move in the opposite direction with a different speed, but retaining the initial moment imparted.
Recall that linear momentum is defined as the product of body mass by Velocity
P = m * v
where:
P = linear momentum [kg*m/s]
m = mass [kg]
v = velocity [m/s]
Answer:
An opaque object with many closely spaced slits
Explanation:
Diffraction grating is an opaque object which will have many close slits on it
Each slit will allow the light wave pass through it which incident on it.
So here each slit will behave like a secondary source which will transmit the light and the superposition of light is then observed on the screen
These large number of slits on the object is combined known as diffraction grating.
By the superposition of waves due to grating we will have pattern of maximum and minimum intensity on the screen and this intensity if highest at the mid point of screen and then decreases as we move away
