I have NO idea how to do this Simone help and if u know the answers that would be great

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

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?

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above