Every atom of the ____ carbon has 6 protons.
1 answer:
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Answer:
The gravity, which is an acceleration to the center of the earth, will be the same.
Explanation:
The gravity on earth depends only on the masses and distance, between two objects. We can see it in the gravitational force equation.
Now if we put a man, with mass m, on the surface of the earth, with mass M, the distance from the center of mass and the man will be R (earth radius). Knowing that F = m*a, we can find the accelerations due to this mass M and this value will be 9.81 m/s².
On the other hand, the moon has a gravity value and is less than the earth, because its mass, and affects the water sea due to the gravitational force between earth and moon. If the moon changes the rate of its rotate it changes probably the distance between them, let's recall they must conserve angular momentum, but the gravity won't be affected.
Therefore, the gravity, which is an acceleration to the center of the earth, will be the same.
I hope it helps you!
Answer:
(a)
(b)
Explanation:
We can derive the initial speed of the rock from the equation of the speed in function of the time:
Using the given values for the speed at time t=1.7s, we get:
In words, the speed of the rock at launch is 34m/s (a).
Next, we use this to calculate the speed at t=4.9s:
This means that the speed of the rock at 4.9s after the launch is 14m/s (b), and the negative sign means that it is moving downwards.