I NEED THIS ASAP!!!!!!!!!!!

Water enters a 4.00-m3 tank at a rate of 6.33 kg/s and is withdrawn at a rate of 3.25 kg/s. The tank is initially half full.

olga55 [171]

Answer:

At the start of the process, the volume not occupied by the water is 2 m3

Explanation:

At the start of the process you have a half full tank. It means that also a half is empty (not occupied by water).

Since the volume is 4 m3, 2 m3 are full (occupied by water) and 2 m3 (not occupied by water).

The volume in time will be

$V(t)=V_0+(f_i-f_o)*t\\\\V(t) = 2 +(6.33/1000-3.25/1000)*t=2+0.00308*t \, \, [m3]$

8 0

3 years ago

A container is filled with a gas. The container has a wall controlled by a moveable piston. The

ioda

Answer:

The new volume will be 3.67 L.

Explanation:

As the volume increases, the gas particles (atoms or molecules) take longer to reach the walls of the container and therefore collide with them fewer times per unit of time. This means that the pressure will be lower because it represents the frequency of collisions of the gas against the walls. In this way pressure and volume are related, determining Boyle's law which says:

"The volume occupied by a certain gaseous mass at constant temperature is inversely proportional to pressure"

Boyle's law is expressed mathematically as:

P*V=k

Now it is possible to assume that you have a certain volume of gas V1 that is at a pressure P1 at the beginning of the experiment. If you vary the volume of gas to a new value V2, then the pressure will change to P2, and it will be fulfilled:

P1 * V1 = P2 * V2

In this case:

P1= 1.85 atm
V1= 4.64 L
P2= 2.34 atm
V2= ?

Replacing:

1.85 atm* 4.64 L= 2.34 atm* V2

Solving:

$V2= \frac{1.85 atm* 4.64 L}{2.34 atm}$

V2= 3.67 L

The new volume will be 3.67 L.

6 0

3 years ago

In living cells, ATP stores the energy that _____.

Shtirlitz [24]

Answer is: A. spontaneous reactions release.

ATP is short for adenosine triphosphate
Adenosine triphosphate converts to either the adenosine diphosphate (ADP) or adenosine monophosphate (AMP), in this process energy is released (for example glycolysis, the citric acid cycle or oxidative phosphorylation and beta-oxidation).

ATP is made of three components: the triphosphate, the sugar ribose and a nitrogenous base (adenine).

7 0

3 years ago

The mass of an atom of element x is equivalent to the total mass of 7 hydrogen atoms

Sergeu [11.5K]

Hydrogen mass is 1, the atom with mass number 7 is Lithium

4 0

3 years ago

ILL GIVE U 100 POINTS!!!!

Alexxx [7]

✿I'll take that 50 pts ✿

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