"It acts over a very small distance" would be the best answer as to a characteristic of the strong nuclear force, since its primary purpose is to bind the smallest particles together.
Given :
Mass of brick, m = 2 kg.
Speed of block, v = 12 m/s .
To Find :
The momentum of the brick.
Solution :
We know, momentum of any object is given by :
Momentum = Mass × Speed
Momentum = m × v
Momentum = 2 kg × 12 m/s
Momentum = 24 kg m/s
Therefore, the momentum of the brick is 24 kg m/s .
Explanation:
it's temp and how big it is
Answer:
10 mT
Explanation:
The relationship between electric field magnitude and magnetic field intensity in an electromagnetic wave is

where
E is the magnitude of the electric field
c is the speed of light
B is the magnitude of the magnetic field
In this problem, we have
is the electric field
is the speed of light
Solving the equation for B, we find

Answer:
B.
Explanation:
One of the ways to address this issue is through the options given by the statement. The concepts related to the continuity equation and the Bernoulli equation.
Through these two equations it is possible to observe the behavior of the fluid, specifically the velocity at a constant height.
By definition the equation of continuity is,

In the problem
is
, then


<em>Here we can conclude that by means of the continuity when increasing the Area, a decrease will be obtained - in the diminished times in the area - in the speed.</em>
For the particular case of Bernoulli we have to


For the previous definition we can now replace,


<em>Expressed from Bernoulli's equation we can identify that the greater the change that exists in pressure, fluid velocity will tend to decrease</em>
The correct answer is B: "If we increase A2 then by the continuity equation the speed of the fluid should decrease. Bernoulli's equation then shows that if the velocity of the fluid decreases (at constant height conditions) then the pressure of the fluid should increase"