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4 years ago

Why is the core the only layer of the Sun where energy is produced?

Physics

2 answers:

son4ous [18]4 years ago

6 0

Answer:

The core is the only layer of the Sun where energy is produced because that is where the fusion process occurs between hydrogen and helium atoms.There, the hydrogen atoms being converted into helium molecules.

HOPE IT HELPS!

Aleks04 [339]4 years ago

6 0

The core of the Sun is the region that extends from the center to about 20–25% of the solar radius. It is here, in the core, where energy is produced by hydrogen atoms (H) being converted into molecules of helium (He).

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If the frequency of the light shining on the metal is increased, will the number of electrons being emitted increase?

Luden [163]

Answer:

Explanation:

In the photoelectric effect,

The number of the electrons which are being emitted is directly proportional to the intensity of the light and is independent on the frequency of the incident radiation of the light which has the frequency greater than the threshold frequency.

Thus, on increasing the frequency of the light which is being shinned on the metal , there is no change in the electrons which are being emitted.

7 0

4 years ago

The electrical resistance of an element in a platinum resistance thermometer at 100°c, 0°c and room temperature are 75.00Ω, 63.0

Dominik [7]

Answer:

16.6 °C

Explanation:

From the question given above, the following data were obtained:

Temperature at upper fixed point (Tᵤ) = 100 °C

Resistance at upper fixed point (Rᵤ) = 75 Ω

Temperature at lower fixed point (Tₗ) = 0 °C

Resistance at lower fixed point (Rₗ) = 63.00Ω

Resistance at room temperature (R) = 64.992 Ω

Room temperature (T) =?

T – Tₗ / Tᵤ – Tₗ = R – Rₗ / Rᵤ – Rₗ

T – 0 / 100 – 0 = 64.992 – 63 / 75 – 63

T / 100 = 1.992 / 12

Cross multiply

T × 12 = 100 × 1.992

T × 12 = 199.2

Divide both side by 12

T = 199.2 / 12

T = 16.6 °C

Thus, the room temperature is 16.6 °C

6 0

3 years ago

Explain why atomic radius decreases as you move to the right across a period for main-group elements but not for transition elem

Aleksandr-060686 [28]

Answer:

Explained.

Explanation:

Only the first question has been answered

In a period from left to right the nuclear charge increases and hence nucleus size is compressed. Thus, atomic radius decreases.

In transition elements, electrons in ns^2 orbital remain same which is the outer most orbital having 2 electrons and the electrons are added to (n-1) d orbital. So, outer orbital electron experience almost same nuclear attraction and thus size remains constant.

7 0

3 years ago

Write the equation of a wave traveling along the +x-axis with an amplitude of 0.02 m, a frequency of 440 Hz, and a speed of 330m

Airida [17]

The equation of the wave travelling along the +x-axis is y = 0.02 sin (880π/330 x – 880 πt)

Explanation:

Given data

Amplitude 0.02 m , Frequency= 440 Hz ,Speed = 330 m/s

The equation format is written as,

y = A sin ( k x – ω t)

We need the value of A, k, x -ω t

1. Find the k value

v = f ×λ

330 = 440×λ

k = 2π×λ

k = 880 π /330 m-1

440 ×2π = w

2. Find the ω value

f×2π =ω

ω = 880 π s-1

3. Find the A value

we get A value from the given data

A = 0.02 m

By the formula,

y = A sin ( k x – ω t)

Substitute the values we get the equation,

y = 0.02 sin (880π/330 x – 880 πt)

The equation of the wave travelling along the +x-axis is y = 0.02 sin (880π/330 x – 880 πt)

8 0

3 years ago

How long will it take 24 C of charge to flow in a 6.0 A circuit? O 0.25 S O 4.05 o 185

RoseWind [281]

Explanation:

charge=24

current =6.0

time=?

formula

c harge=current ×time

charge/current=time

24/6.0=time

4.05second=time

4 0

3 years ago