if the pointy thingy in your compass is pointing north, that means it's being (pulled toward) something near Earth's north pole
The answer is A. 50 m/s
I took the test and completed the study guide in class and got it correct.
i think the answer for this is aluminium
hope this helps u stay safe
<span><span>C. People who work hard are superior to those who are lazy.</span><span> </span></span>
We can solve the problem by using the law of conservation of energy:
- at the beginning, all mechanical energy of the object is just kinetic energy: , where m is the mass and v is the velocity
- at the point of maximum height, all mechanical energy of the object is just gravitational potential energy: , where h is the maximum height
Therefore, the conservation of energy becomes:
Re-arranging, we find the maximum height: