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aliya0001 [1]
3 years ago
13

Which sentence describes an example of sublimation?

Physics
1 answer:
k0ka [10]3 years ago
7 0

answer C is the correct one

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1. A 2m-long and 3m-wide horizontal rectangular plate is submerged in water. The distance of the top surface from the free surfa
ExtremeBDS [4]

Answer:

864 KN

Explanation:

(Absolute pressure) = (Atmospheric pressure) + (Gauge Pressure)

Atmospheric pressure = 95 KPa = 95000 Pa

Gauge Pressure = ρgh

ρ = density of the fluid = 1000 kg/m³

g = acceleration due to gravity = 9.8 m/s²

h = depth below the fluid level that the object is at = 5 m

Gauge Pressure = 1000 × 9.8 × 5 = 49000 Pa

Absolute pressure = 95000 + 49000 = 144000 Pa.

Pressure = (Hydrostatic force)/(Area perpendicular to the force)

Hydrostatic force = (Pressure) × (Area perpendicular to the force)

Area perpendicular to the force = 2 × 3 = 6 m²

Hydrostatic force on the top of the plate = 144000 × 6 = 864000 N = 864 KN

Hope this Helps!!!

8 0
3 years ago
Vittorio needs to clean the dusty mirror hanging on the wall beforehe can use it, but he would like to clean as little of the mi
Inessa [10]

Answer:

The drawing is attached below.

Explanation:

According to the drawing, we can see that the point "0" marked on the mirror, is the point that allows the formation of an angle between Vittorio's eyes and the place where his shirt logo is. In summary, the point on the mirror that needs to be cleaned, so that Vittorio can see only the logo of his shirt, is the point that represents equal vertical distances between Vittorio's eyes and the shirt's logo, since these distances present the same angle.

6 0
4 years ago
If an acid and a base react, the product(s) will be ____.
lara31 [8.8K]
I’m pretty sure that if an acid and base react the products will be a salt
6 0
3 years ago
When a project is completed on time, the project team must accomplish all of the following activities EXCEPT: ​
gregori [183]

Answer:

The answer is C

Explanation:

When the project finishes under a certain agreement. the project team must capture and share lessons that learn to not repeat same mistakes that made while project ongoing. Therefore, when the similar work need to be redone new project team saves time and labor force with those feedback.

The project team must secure customer feedback and approval to get their claims and progress payments.

The project team must plan a smooth transition of deliverable into ongoing operations in order to get feedback or approval from them in a certain of time. With those feedback of approvals the project team can plan their rework or payment progress.

Alternative dispute resolution is not a must work. It depends on the agreement.

5 0
3 years ago
Calculate the heat energy required to increase the temperature of 3 kg of water by 20ºC. The specific heat capacity of water is
Marina86 [1]

Answer:

Heat energy required = 252000J or 252KJ.

Explanation:

<u>Given the following data;</u>

Mass = 3kg

Temperature = 20ºC

Specific heat capacity of water = 4200 J/kg°C

To find the heat energy required;

Heat capacity is given by the formula;

Q = mct

Where;

  • Q represents the heat capacity or quantity of heat.
  • m represents the mass of an object.
  • c represents the specific heat capacity of water.
  • t represents the temperature.

Substituting into the equation, we have;

Q = 3*4200*20

Q = 252000 Joules or 252 Kilojoules.

6 0
3 years ago
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