A bicyclist travels 60.0 kilometers in 3.5 hours. What is the cyclist's average speed? Note: Average speed is the total distance
1 answer:
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1. B
It comes from Newton's law of universal gravitation.
<span><span>,
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<span><span>
</span></span>
Where:
F is the force between the masses, (the one we are looking for)G is the gravitational constant,m1 is the first mass (Earth)m2 is the second mass (sattelite)r is the distance between the centers of the masses.As you can see except for m2, all other values are the same.
If mass is bigger the force grows.
2. D.
Again check the formula. The bigger distance, the smaller force. So, closer = bigger force.
3.C It will increase.Ohm's law:
Where:
I is the current.
V is voltage
R is the resistance.
In order for current to remain the same, while voltage increases, the resistance has to increase accordingly.
It comes from Newton's law of universal gravitation.
<span><span>,
</span></span>
</span></span>
Where:
F is the force between the masses, (the one we are looking for)G is the gravitational constant,m1 is the first mass (Earth)m2 is the second mass (sattelite)r is the distance between the centers of the masses.As you can see except for m2, all other values are the same.
If mass is bigger the force grows.
2. D.
Again check the formula. The bigger distance, the smaller force. So, closer = bigger force.
3.C It will increase.Ohm's law:
Where:
I is the current.
V is voltage
R is the resistance.
In order for current to remain the same, while voltage increases, the resistance has to increase accordingly.