Please help me solve this problem (please solve it in a way that I can write it down to explain the answer) THANK YOU SO MUCH

Which is not true about oxygen-17 and oxygen-18?

There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.