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Mariana [72]
3 years ago
5

Based on its position in the periodic table of the elements, how many valence electrons does phosphorus (atomic number 15) have?

Physics
2 answers:
nekit [7.7K]3 years ago
8 0

Answer:

5 Valence electrons

Explanation:

Komok [63]3 years ago
5 0

Answer:

5 Valence electrons

Explanation:

Hope this will help

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What is carnot engine.express the relation for its efficiency?​
patriot [66]

Answer:

Explanation:

The Carnot cycle is a special case of a thermodynamic cycle that produces an ideal gas and consists of two isothermal  processes and two adiabatic processes. This cycle is a theoretical solution given by Sadi Karnot to refine heat engines for their efficient use.

The formula for the coefficient of efficiency is:

η = (Q₁ - Q₂) / Q₁ = (T₁ - T₂) / T₁

Where Q₁ is is the amount of heat of the heater supplied to the working body and Q₂ is the amount of heat that the working body transfers to the refrigerator according to this T₁ is the temperature of the heater T₂ is the temperature of the refrigerator.

This formula provides a theoretical limit for the maximum value of the coefficient of efficiency of heat engines.

God is with you!!!

6 0
4 years ago
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4. A chandelier brightens a ballroom after a waiter moves a switch
Leokris [45]

Answer:

because switch moves after a waiter

Explanation:

7 0
3 years ago
A baseball has a mass of 0. 45 kg and is thrown with a speed of 25 m/s. What is the momentum of the baseball? 0. 018 kg • mete
aleksandr82 [10.1K]

Answer:

11 Kg.m/s

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P=mv

P=0.45*25

P=11.25 Kg.m/s

3 0
2 years ago
A mover uses a ramp to push a stereo into the moving van. The ramp is 3 meters long and 1.5 meters high. What is the ima of this
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Mechanical advantage<span> <span>is a measure of the force amplification achieved by using a tool, </span>mechanicaldevice or machine system. Ideally, the device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever. So the ima is 3/1.5 = 2</span>

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4 years ago
List a few reasons you do not support nuclear energy
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Local thermal pollution from wastewater affects marine life.

Large-scale accidents can be catastrophic.

Public perception of nuclear power is negative.

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