Nuclear fusion occurs in stars. a. True b. False

2 answers:

8 0

Stars are powered by nuclear fusion in their cores, mostly converting hydrogen into helium. The production of new elements via nuclear reactions is called nucleosynthesis. A star's mass determines what other type of nucleosynthesis occurs in its core (or during explosive changes in its life cycle). READ THIS AND YOU WILL UNDERSTAND I THINK IS TRUE

earnstyle [38]2 years ago

8 0

Answer : The given statement is True.

Explanation -

Nuclear fusion is a thermonuclear reaction in which light stable nuclei combine with each other in order to form a heavy stable nucleus with the release of large amount of energy.

In case of stars, four hydrogen nuclei combine with each other to form a helium nucleus with a release of 26 Mev per cycle.

Thus, nuclear fusion occurs in stars is true statement.

You might be interested in

A 11.7-Ω resistor is made from a coil of copper wire whose total mass is 13.5 g . The resistivity of copper is 1.68×10−8Ω⋅m, the

Andrej [43]

Answer:

a) d = 7.62 10⁻⁶ m, b) l = 3.25 10⁴ m

Explanation:

Resistance is expressed by the formula

R = ρ l / A (1)

density is defined by

density = m / V

the volume of a wire is the cross section by the length

V = A l

we substitute

density = m / A l

A = m / density l

we substitute in 1

R = ρ l density l / m

R =ρ density l² / m

l = √ (R m /ρ density)

let's calculate the cable length

l = √(11.7 13.5 10⁻³ / (1.68 10⁻⁸ 8.9 10³))

l = √(10.56 10⁸)

l = 3.25 10⁴ m

now we can find the cable diameter with the density equation

A = m / density l

A = 13.5 10⁻³ / (8.9 10³ 3.25 10⁴)

A = 4,557 10⁻¹¹ m²

the area of the circle is

A = π r² = π d² / 4

d = √ (4A /π)

d = √ (4 4,557 10⁻¹¹/π)

d = 7.62 10⁻⁶ m

3 0

3 years ago

The eagle drops the trout a height of 6.1 m the fish travels 7.9 m horizontaly before hitting the water what is the velocity of

Semenov [28]

The velocity of the eagle is 7.0 m/s

Explanation:

The motion of the fish is a projectile motion, which consists of two independent motions:

- A uniform motion (constant velocity) along the horizontal direction, where the horizontal velocity of the fish is equal to the horizontal velocity of the eagle

- An accelerated motion with constant acceleration (acceleration of gravity) in the vertical direction

We start by analyzing the vertical motion, using the following suvat equation:

$s=ut+\frac{1}{2}at^2$