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Marianna [84]
3 years ago
9

The rate (in liters per minute) at which water drains from a tank is recorded at half-minute intervals. Use the average of the l

eft- and right-endpoint approximations to estimate the total amount of water drained during the first 3 min.

Physics
1 answer:
lana [24]3 years ago
3 0

Answer:

see explanation

Explanation:

You are missing the chart with the rates and time to do this, however, I wll do it with a similar exercise here, and you only need to replace the procedure with your data:

See the attached table.

From the left we have:

r = 1/2 (50 + 48 + 46 + 44 + 42 + 40) = 135 L/min

From the right we have:

r = 1/2 (48 + 46 +44 + 42 + 40 + 38) = 129 L/min.

And this should be the correct answer. Watch your chart and replace if it's neccesary.

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Norma-Jean [14]

Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm maybe

8 0
3 years ago
An 8 Newton wooden block slides across a horizontal wooden floor at constant velocity. What is the magi notice of the force of k
kondaur [170]

Answer:

The force of kinetic friction between the block and the floor is 2.4 N

Explanation:

The given parameters are;

The weight of the block = 8 Newtons

The velocity of the block = Constant velocity

Taking the kinetic friction for wood, \mu _k = 0.3, we have;

The normal reaction of the block on horizontal ground, N = The weight of the block = 8 N

The force of kinetic friction between , F_k = \mu _k × N

Therefore, we have;

The force of kinetic friction between the block and the floor, F_k = 0.3 × 8 N = 2.4 N.

8 0
3 years ago
Balanced or un balanced
sattari [20]

Answer: unbalance

Explanation:

5 0
3 years ago
Determine the magnitude as well as direction of the electric field at point A, shown in the above figure. Given the value of k =
Pavlova-9 [17]

Answer:

The magnitude of the electric field is 8.99*10^{12}N/C in the r direction.

Explanation:

The equation of the electric field is given by:

|\vec{E}|=k\frac{q}{r^{2}}

Where:

  • k is the Coulomb constant is 8.99 *10^{9}\: Nm^{2}C^{-2}
  • q is the charge
  • r is the distance from A to q

|\vec{E}|=8.99*10^{9}\frac{12.5}{0.11^{2}}    

\vec{E}=9.29*10^{12} \vac{r} \: N/C

Therefore, the magnitude of the electric field is 8.99*10^{12}N/C in the r direction.

I hope it helps you!

4 0
3 years ago
Regardless of the method used to generate electrical energy, the amount of energy provided by the
PSYCHO15rus [73]
Some of the energy is converted into heat. This is the main reason why electrical material gets hot when connected to a source. Therefore, your initial energy does not equal final energy. This does not violated energy conservation law because the energy is being converted so it is never lost. 
3 0
4 years ago
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