Assume that a cloud consists of tiny water droplets suspended (uniformly distributed,

I will be so thankful if u answer correctly!!

polet [3.4K]

(C) 200 N

Explanation:

The acceleration due to gravity on earth $g_{E}$ is given by

$g_{E} = G\dfrac{M_{E}}{R_{E}^{2}}$

where $G$ = universal gravitational constant

$\:\:\:\:\:\:\:\:\:\:\:\:M_{R}$ = mass of the earth

$\:\:\:\:\:\:\:\:\:\:\:\:R_{E}$ = radius of the earth

Planet Krypton has twice the mass of earth and 3 times the radius so its acceleration due to gravity $g_{K}$ is

$g_{K} = G\dfrac{M_{K}}{R_{K}^{2}}$

$\:\:\:\:\:\: = G\dfrac{(2M_{E})}{(3R_{E})^{2}}$

$\:\:\:\:\;\:= (\dfrac{2}{9})G\dfrac{M_{E}}{R_{E}^{2}}$

or

$g_{K} = (\dfrac{2}{9})\:g_{E}$

If we multiply both sides by Superman's mass, we get his weights on both planets:

$mg_{K} = (\dfrac{2}{9})\:(mg_{E})$

$W_{K} = (\dfrac{2}{9})\:W_{E} = (\dfrac{2}{9})(900\:N)= 200\:N$

3 0

2 years ago

A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.1 m/s. The car is a distanc

Igoryamba

It's 61.5m

by solving simultaneously equations
29+d = 6t (bear)
d=4.1t (tourist)

6 0

3 years ago

Read 2 more answers

Two charges are repelling each other with a force magnitude F. If each charge doubled and the distance between the charges becam

eduard

Answer:

(1/4)F

Explanation:

Let F be the force on charges q and q' separated by a distance, d

F = kqq'/d²

Now, if q and q' are doubled, our new charges are 2q and 2q' respectively and, if the distnace is increased by four times, then our new distance is 4d. So our new force F' = k (2q)(2q')/(4d)²

= 4kqq'/16d²

= kqq'/4d²

= F/4

So, the magnitude of our new force is F/4

7 0

2 years ago

what is the point called at which the reflected rays intersect in the image above? a. real image b. virtual image c. focal point

34kurt

Focal point is the point where all of the reflected rays intersects.

8 0

2 years ago

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The allele for a hybrid tall pea plant is represented as

koban [17]

Hey there!

The allele for a hybrid tall pea plant is represented as Tt

Thank you!

5 0

3 years ago