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3 years ago

5

A methanogen is prokaryotic and unicellular, and it also lives in extreme environments. Which kingdom does it belong in?

1 answer:

marissa [1.9K]3 years ago

5 0

Answer:

Archaebacteria Kingdom

Explanation:

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A planet exerts a gravitational force of magnitude 9e22 N on a star. If the planet were 2 times closer to the star (that is, if

Dmitrij [34]

To solve this problem we will use the related concepts in Newtonian laws that describe the force of gravitational attraction. We will use the given value and then we will obtain the proportion of the new force depending on the Radius. From there we will observe how much the force of attraction increases in the new distance.

Planet gravitational force

$F_p = 6*10^{22}N$

$F_p = \frac{GMm}{R^2}$

$F_p = 9*10^{22}N$

Distance between planet and star

$r = \frac{R}{2}$

Gravitational force is

$F = \frac{GMm}{r^2}$

Applying the new distance,

$F = \frac{GMm}{(\frac{R}{2})^2}$

$F = 4\frac{GMm}{R^2}$

Replacing with the previous force,

$F = 4F_p$

Replacing our values

$F= 4(9*10^{22}N)$

$F = 36*10^{22}N$

Therefore the magnitude of the force on the star due to the planet is $36*10^{22}N$

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3 years ago

Jerusha and anavi are working very hard to tend their organic veggie garden when jerusha sees a bunny nibbling on a tender letuc

zubka84 [21]

Answer:

Explanation:

Given:

Initial Velocity, u = 0 km/s (at rest)

Final Velocity, v = 16 km/s

Time taken, t = 3 sec

acceleration, a = (v - u)/t

= (16 - 0)/3

= 5.33 km/s^2

8 0

3 years ago

If a man weighs 750 n on the earth, what would he weigh on jupiter, where the free-fall acceleration is 25.9 m/s2?

Zepler [3.9K]

1982.14N is the answer

4 0

4 years ago

A bird can fly 25 km/h. How long does it take to fly 3.5km?

monitta

The equation of motion that we can use in this case is:

t = d / v

where t is time, d is distance, v is velocity

Therefore calculating for t:

t = 3.5 km / (25 km / h)

<span>t = 0.14 h = 8.4 minutes</span>

6 0

3 years ago

Ill mark as brainliest

Nostrana [21]

Density= mass/volume

in this case density= 1.1g
and the volume = 40 cm^3

so
1.1=40/mass
mass=40/1.1

mass=36.4

7 0

3 years ago