Answer:
upthrust
Explanation:
pulling against the force
The force between the planets will not change after doubling the masses of the planets and distance between them.
To find the answer, we need to know about the gravitational force of attraction.
<h3>What's the gravitational force attraction?</h3>
- According to Newton's gravitational law, the force between two objects is directly proportional to the product of their masses and inversely propertional to the square of the distance between them.
- Mathematically, Gravitational force= GMm/r². G is the gravitational constant.
<h3>What is the gravitational force between two planets when their masses and distance between them are doubled?</h3>
- Then masses are 2M and 2m. Distance is 2r.
- So gravitational force= G×2M×2m/(2r)²
= GMm/r²
Thus, we can conclude that the gravitational force will not change of the masses are doubled and the separation is also doubled between the planets.
Learn more about the gravitational force here:
brainly.com/question/72250
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Epidermis is the top layer of the skin, the part of the skin you see.
Dermis is the second layer of skin. It's much thicker and does a lot for your body.
Subcutaneous fat is the bottom layer.
Hope I helped.
Answer:
0.48 s
Explanation:
The vertical position of the ball at time t is given by:
where
h = 3 m is the initial height
u = 0.4 m/s is the initial velocity
g = 24.5 m/s^2 is the acceleration of gravity on the surface of Jupiter
The negative signs are due to the fact that the direction of the initial velocity and of the acceleration are downward
The ball reaches the surface at time t such that y(t)=0, so:
Substituting values,
Solving the second-order equation, we find:
which gives two solutions:
t = 0.48 s
t = -0.51 s
We discard the second one since it is negative, so the ball reaches the surface after 0.48 s.