A semi-truck as mass of 40 000 kg and is traveling at 80.0 km/h, south. What is it's momentum? *
A. 210,000 kg m/s
B. 880,000 kg m/s
C. 3,200,000 kg m/s
D. 440,000 kg m/s

Idon’t quite understand this problem

Which of these questions might a character ask if the conflict is man versus self? a. which path should i take to better myself? b. which boulder will be too heavy for me to carry? c. which friend is going to ditch me today? d. all of the above

How can you increase the strength of an electromagnet?