Answer:
a) 2.33 m/s
b) 5.21 m/s
c) 882 m³
Explanation:
Using the concept of continuity equation
for flow through pipes

Where,
A = Area of cross-section
V = Velocity of fluid at the particular cross-section
given:


a) 
substituting the values in the continuity equation, we get

or

or

b) 
substituting the values in the continuity equation, we get

or

or

c) we have,
Discharge
thus from the given value, we get


Also,
Discharge
given time = 1 hour = 1 ×3600 seconds
substituting the value of discharge and time in the above equation, we get

or

volume of flow = 
The program test is to see if you’re more likely to die in a situation of death psych I lied
Biotic parts of an ecosystem interact with living things like plants, animals, bacteria, and more organisms. Abiotic parts of an ecosystem are non-living things
There are numerous theories as to the origin of our galaxy and our solar system within our galaxy. I have attached two references that will detail several of them.
As far as motion of the earth, our planet has a prograde revolution around the sun. Prograde motion would be a counterclockwise motion. All the planets in our solar system have this prograde revolution. They all accomplish this revolution in the same plane. Most all the planets have a prograde roatation, like earth, as they perform this revolution.
One of the theories about how the universe and the galaxies and solar systems were formed after the Big Bang is a theory called the "nebular theory." A nebula is a gas and dust cloud. According to this theory, the gas and dust particles collided with each other, were gravitationally attracted to each other, and got progressively larger. As this formation happened, a centripetal force was created by the force of the collisions and the mass of planets began to spin and revolve. It should be noted there is room for the revolutions and rotations to go one way or another, depending on the angle of incidence in the collision of said gas and dust particles. This would be one accounting for the present motion of the planetary constituents in our solar system.
Answer:
1665 N
Explanation:
The weight of an object is the gravitational force that pulls the object towards the Earth's centre. Its magnitude is given by

where
m is the mass of the object
g is the acceleration due to gravity
The mass of an object can be rewritten as

where
is the density of the material
V is the volume of the object
So the weight can be rewritten as

For the block of concrete in this problem we have:
is the density of concrete
is the volume of the block
is the acceleration due to gravity
So the weight of the block is:
