Answer:
B. A well-tested explanation for a widely accepted hypothesis
Explanation:
This is true about a scientific theory going by the fact of it being a well tested explanation. For example, in one of the Newtons law of motion which he stated to be<em> "To every action, there is equal and opposite reaction", </em><em>the hypothesis has been known till he was able to offer a well tested explanations with calculations showing that, it was actually true.</em>
820 meters is the longest
They're equal.
Ignoring air resistance, any object you're not holding onto has the same, constant acceleration ... 9.8 m/s^2 down ... from the moment it leaves your hand until the moment it hits the ground.
It doesn't matter how heavy the object is, and it doesn't matter whether you throw it up, down, or sideways, or just let go and let it drop.
For one thing, hydrogen gas or fuel is really expensive compared to present diesel and gasoline. There's no point in actually investing in them since economy will not improve otherwise. Gasoline stations will also have to adjust to how tricky hydrogen gas will be to support and store with ease. It's dangerous also to the driver, passengers and our environment.
Please elaborate unable to help thanks
