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Monica [59]
4 years ago
6

A box with an open top has vertical sides, a square bottom, and a volume of 32 cubic meters. if the box has the least possible s

urface area, find its dimensions. (in your answer leave a space between the number and the unit.) height = (include units)
Physics
1 answer:
svetoff [14.1K]4 years ago
6 0

Length = 3.1748 meters

Width = 3.1748 meters

Height = 3.1748 meters

Surface area = 5 · 3.1748²

Surface area = 50.397 meters²

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As you can see from the Group 1 stars, the cooler or hotter a star is, the brighter it will be. Group 2 and Group 3 stars do not
forsale [732]

Answer:

brightness that we observe from a star is related to the energy produced and the distance to the Earth

Explanation:

In stars, the color that we observe is directly related to the temperature of the star by the y of the Wien displacement.

             λ_{max} T = 2,898 10³

the brightness that we observe from a star is related to the energy produced and the distance to the Earth

8 0
3 years ago
What is the expermintal example of Zeeman effect?
Mrac [35]

Answer:

When the spectral lines are absorption lines, the effect is called inverse Zeeman effect.

6 0
3 years ago
Water starts off its existence as a polarized molecule. A stream of water is deflected towards a nearby electrically charged obj
trapecia [35]

Answer:

Option d) can not be determined from the given information

Explanation:

Water is a polar molecule consisting of 2 positive hydrogen atoms and a negative oxygen atom.

When a stream of water is deflected by positively charged object, the water molecules are oriented in such a way that oxygen  in water, being negatively charge gets attracted to the charged object and aligns near the object whereas hydrogen aligns on the opposite side overcoming the inter-atomic repulsion.

Similar is the case with hydrogen in case the object is negatively charged.

Therefore, it explains that water is a polar molecule and gets attracted to both positive and negative charges and hence, the sign of the object can not be determined.

3 0
3 years ago
At what speed must a 950-kg subcompact car be moving to have the same kinetic energy as a 3.2×104−kg truck going 20 km/h?
Ostrovityanka [42]

<u>Answer:</u>

 950-kg subcompact car be moving to have the same kinetic energy of truck at 116.08 km/hr

<u>Explanation:</u>

  Kinetic energy of body with mass m and moving at velocity v is given by

                  KE=\frac{1}{2} mv^2

  KE of truck  = \frac{1}{2}*3.2*10^4*20^2

  KE of subcompact car = \frac{1}{2}*950*v^2

  Equating

         \frac{1}{2}*3.2*10^4*20^2= \frac{1}{2}*950*v^2\\ \\ v=116.08 km/hr

 So 950-kg subcompact car be moving to have the same kinetic energy of truck at 116.08 km/hr

6 0
4 years ago
In a series RLC ac circuit, a second resistor is connected in series with the resistor previously in the circuit. As a result of
AnnyKZ [126]

Answer:

* The first thing we observe is that the frequency response does not change

* The current that circulates in the circuit decreases due to the new resistance at the resonance point,

          Z = R + R₂

Explanation:

The impedance of a series circuit is

          Z₀² = R² + (X_L-X_C) ²

when we place another resistor in series the initial resistance impedance changes to

          Z² = (R + R₂) ² + (X_L - X_C) ²

           

let's analyze this expression

* The first thing we observe is that the frequency response does not change

* The current that circulates in the circuit decreases due to the new resistance at the resonance point,

          Z = R + R₂

8 0
3 years ago
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