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2 years ago

(15 POINTS) Victor drew a diagram to show the life cycle of a low-mass star.

Physics

2 answers:

EleoNora [17]2 years ago

9 0

Answer: White dwarf is the answer

Explanation: White dwarf is the answer because th stars and the nebula are forming a new baby white dwarf. hope this helps thanks.

Evgen [1.6K]2 years ago

4 0

The answer is c so the area can grow

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A 0.22 kg air track glider moving at 0.60 m/s a collides elastically into a 0.44 kg glider at rest. After collision the 0.22 kg

motikmotik

The glider collides elastically an another glider at rest, in this case we have the coservation of quantity of movement

m1 v1 + m2 v2 = m1V1 + m2 V2
v is the velocity before the shock, V the velocity after the shock
m1=0.22
v1=0.60m/s
m2=0.44
V1=-0.20m/s
remark that 0.44 kg glider is initially at rest, so v2= 0
the equation above can be written m1 v1 = m1V1 + m2 V2 ( because v2=0 at rest)
m1 v1 = m1V1 + m2 V2 implies V2= (m1v1 -m1V1) / m2

V2=0.22x0.60 -0.22x (-0.20) ] / 0.44= 0.4m/s

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3 years ago

Two objects of same material are travelling near you. Object A is a 1.9 kg mass traveling 8 m/s; object B is a 2 kg mass traveli

Alex73 [517]

To determine the object which could give the greatest impact we will apply the concept of momentum. The object that has the highest momentum will be the object that will impact the strongest. Our values are

Mass of Object A

$m_A=1.9 kg$

Velocity of object A

$v_A=8ms$

Mass of object B

$m_B=2 kg$

Velocity of object B

$v_B=5ms$

The general formula for momentum is the product between mass and velocity, then

$p = mv$

For each object we have then,

$p_A=m_Av_A=1.9 kg(8ms)=15.2kg \cdot m/s$

$p_B=m_Bv_B=2 kg(5ms)=10kg \cdot m/s$

Since the momentum of object A is greater than that of object B, then object A will make you feel force upon impact.

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3 years ago

How does the law of conservation of energy apply to machinesBased on the law of conservation of energy, how can we reasonably im

SIZIF [17.4K]

Answer:

According,to the law of conservation of energy,the amount of energy in a closed system always stay constant. ... So,the amount of work output and other transformed energy is equal to the amount of energy inputs. • In this way,the conservation of energy is fulfilled by the machines.

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3 years ago

A +27 nCnC point charge is placed at the origin, and a +6 nCnC charge is placed on the xx axis at x=1mx=1m. At what position on

svet-max [94.6K]

Answer:

The position on the x axis is 0.32 m.

Explanation:

Given that,

Point charge = 27 nC

Charge = 6 nC

Distance = 1

We need to calculate the distance

Using formula of electric field

$\dfrac{kq_{1}}{x^2}=\dfrac{kq_{2}}{(r-x)^2}$

Put the value into the formula

$\dfrac{27\times10^{-9}}{x^2}=\dfrac{6\times10^{-9}}{(1-x)^2}$

$\dfrac{27}{x^2}=\dfrac{6}{(1-x)^2}$

$\dfrac{(1-x)^2}{x^2}=\dfrac{27}{6}$

$\dfrac{1-x}{x}=\sqrt{\dfrac{27}{6}}$

$\dfrac{1}{x}=\sqrt{\dfrac{27}{6}}+1$

$x=0.32\ m$

Hence, The position on the x axis is 0.32 m.

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2 years ago

What is Circular Motion?

nevsk [136]

Circular motion is what an object has if it is moving around and around and around and around and around and around and around and around and around in a path that is a circle.

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3 years ago

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