<span>First of all, the bolts wont hit the ground at equal time intervals because each bolt is constantly increasing. Therefore, the top will have different velocity with the bottom bolt at all times. this means that the bolts will speed up more as they are higher which will make the interval time shorter. therefore, the time will decrease</span>
Assuming the deer's acceleration was constant, we have
where is the deer's total displacement, are the deer's final and initial velocities, and is time. Then
Answer: D. The force and displacement are in the same direction.
Explanation:
The Work done by a Force refers to the release of potential energy from a body that is moved by the application of that force to overcome a resistance along a path with distance .
Work is a scalar magnitude, and its unit in the International System of Units is the Joule (like energy).
Now, when the applied force is constant and the direction of the force and the direction of the displacement are <u>parallel</u>, the equation to calculate it is:
(1)
When they are not parallel, both directions form an angle, let's call it . In that case the expression to calculate the Work is:
(2)
When the force and displacement are perpendicular to each other, and <u>no work is done</u>.
<span>Ocean waves is a promising form of energy to harvest. </span>Wave energy<span> is an endless source of </span>energy<span>, which will contribute to the renewable energy </span><span>that might replace the fossils and nuclear fuels. </span>It can generate electricity around the clock, eliminating the need for energy-storage systems. <span>They are in unlimited quantity and they</span><span> can give a reasonable supply of energy </span>that will last forever. Not only that, Our using them for energy is not going to shorten their life span.
Answer:
This is a good experiment, however there are a few flaws
Explanation:
In this experiment, the battery is not replaced. Which can then affect the experiment if it had sustained damage from the failed attempts in the garage, and then being moved to the second scenario. Another possibility is that the battery was faulty from the start, which would definitely affect the results negatively.
Another flaw would be the temperature. The first scenario of a warm garage is fine, however after being moved to an environment below zero, the water in the car would have frozen, and many other systems would be impaired. Therefore the starting of the car would be influenced by more than just the battery.