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3 years ago

Why can a star have several different habitable zones

Physics

1 answer:

Rzqust [24]3 years ago

8 0

Because they are placed in different habitable zones

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A force Ě = F, î + Fy h acts on a particle

AVprozaik [17]

Answer:

Pt 1: $W=39J$

Pt 2: θ = $19.7$

Explanation:

Part 1:

$W=FS$

$W=F_{_xs_x}+F{_ys_y}$

imagine the "i"and the "j" with the hat

$W=(10i-1j)(4i+3j)$

$W=(10*4)-(1*1)$

$W=40-1$

$W=39J$

Part 2:

$|F|=\sqrt{10^2+(-1)^2}$

$|F|=\sqrt{101}$

$|S|=\sqrt{4^2+1^2}$

$|S|=\sqrt{17}$

$W=|F||S|cos$ θ

$39=(\sqrt{101})(\sqrt{17} )cos$ θ

θ = $19.7$

Hope it helps

8 0

3 years ago

What is the best definition of translucent?

Elden [556K]

The answer is A. an object that allows some light to pass through

4 0

3 years ago

A dielectric-filled parallel-plate capacitor has plate area A = 30.0 cm2 , plate separation d = 9.00 mm and dielectric constant

PIT_PIT [208]

Answer:

$9.96\cdot 10^{-10}J$

Explanation:

The capacitance of the parallel-plate capacitor is given by

$C=\epsilon_0 k \frac{A}{d}$

where

ϵ0 = 8.85x10-12 C2/N.m2 is the vacuum permittivity

k = 3.00 is the dielectric constant

$A=30.0 cm^2 = 30.0\cdot 10^{-4}m^2$ is the area of the plates

d = 9.00 mm = 0.009 m is the separation between the plates

Substituting,

$C=(8.85\cdot 10^{-12}F/m)(3.00 ) \frac{30.0\cdot 10^{-4} m^2}{0.009 m}=8.85\cdot 10^{-12} F$

Now we can calculate the energy of the capacitor, given by:

$U=\frac{1}{2}CV^2$

where

C is the capacitance

V = 15.0 V is the potential difference

Substituting,

$U=\frac{1}{2}(8.85\cdot 10^{-12}F)(15.0 V)^2=9.96\cdot 10^{-10}J$

4 0

3 years ago

How much work is done if a 15 newton suitcase is lifted 2 m ?

nirvana33 [79]

Answer:

196 J

Explanation:

3 0

3 years ago

What distance does light travel in water, glass, and diamond during the time that it travels 1.0 m in vacuum? the refractive ind

alexdok [17]

We are given with
distance traveled through vacuum = 1.0 m
refractive index of water = 1.33
refractive index of glass = 1.50
refractive index of diamond = 2.42

distance traveled through water is = 1.0/1.33 = 0.75 m
distance traveled through water is = 1.0/1.50 = 0.67 m
distance traveled through water is = 1.0/2.42 = 0.41 m

8 0

4 years ago

Read 2 more answers