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4 years ago

Built an atom of Krypton which has an atomic number of 36?

Physics

1 answer:

gogolik [260]4 years ago

7 0

Answer:

what's the question exactly because what you said was true but what's the question

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Astronomy question, what keeps supernova explosions from being seen?

kirill115 [55]

a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.

4 0

3 years ago

Two containers have a substantial amount of the air evacuated out of them so that the pressure inside is half the pressure at se

adoni [48]

Answer:

$(a)\ F_{No} = [P_{No} - \frac{P_{area}}{2}]* A$

$(b)\ F_{No} = 771.125N$

Explanation:

Given

$d_D = 6000ft$ ---- Altitude of container in Denver

$A = 0.0155m^2$ -- Surface Area of the container lid

$P_D = 79000Pa$ --- Air pressure in Denver

$P_{No} = 100250Pa$ --- Air pressure in New Orleans

See comment for complete question

Solving (a): The expression for $F_{No$

Force is calculated as:

$F = \triangle P * A$

The force in New Orleans is:

$F_{No} = \triangle P * A$

Since the inside pressure is half the pressure at sea level, then:

$\triangle P = P_{No} - \frac{P_{area}}{2}$

Where

$P_{area} = 101000Pa$ --- Standard Pressure

Recall that:

$F_{No} = \triangle P * A$

This gives:

$F_{No} = [P_{No} - \frac{P_{area}}{2}]* A$

Solving (b): The value of $F_{No$

In (a), we have:

$F_{No} = [P_{No} - \frac{P_{area}}{2}]* A$

Where

$A = 0.0155m^2$

$P_{No} = 100250Pa$

$P_{area} = 101000Pa$

So, we have:

$F_{No} = [100250 - \frac{101000}{2}] * 0.0155$

$F_{No} = [100250 - 50500] * 0.0155$

$F_{No} = 49750* 0.0155$

$F_{No} = 771.125N$

4 0

3 years ago

Someone please help me

Trava [24]

Answer:

The answer to your question is: D) Ф₂ = 49.71°

Explanation:

Data

n₁ = 1.33

Ф₁ = 35°C

n₂ = 1

Ф₂ = sin⁻¹ (n₁ sinФ₁/n₂)

Process

Substitution

Ф₂ = sin⁻¹ (n₁ sinФ₁/n₂)

Ф₂ = sin⁻¹ (1.33 sin 35/1)

Ф₂ = sin⁻¹ (1.33 x 0.574/ 1)

Ф₂ = sin⁻¹ ( 0.7628 / 1)

Ф₂ = sin⁻¹ (0.7628)

Ф₂ = 49.71°

8 0

4 years ago

The force of gravity on you is greatest when you are standing _____.

I am Lyosha [343]

The force of Earth's gravity on you is greatest when you stand as
close as you can to the center of the Earth (but not underground).

From the choices listed, that would be (c).

8 0

3 years ago

Consider a 150-w incandescent lamp. the filament of the lamp is 5-cm long and has a diameter of 0.5 mm. the diameter of the glas

Allisa [31]

(a).the heat trasfer surface area and heat flux on the surface of filament are Area of Surface= ÂµDL=3.14(0.05cm)(5cm)= 0.785 cm square qs=Q/Area of surface= 150W/0.785= 191W/cmsq.=1.91x10Âłx10ÂłW/Msq (b). the heat surface on the surface of heat bulb Area of surface = 3.14xDÂ˛= 3.14(8CM)Â˛= 201.1cmÂ˛ qs=Q/Area of surface=150w/201.1cmÂ˛=0.75 w/cmÂ˛= 7500w/mÂ˛ the amount and cost of electrical energy consumed during one period is Electrical Consumption=QÎ›t=(0.15 KW)(365X8h/yr)=438 k Wh/yr Annual cost= 438 kWh/yr)($.08/kWh)= $ 35.04 /yr

8 0

4 years ago