The upstream of a river can be determined by

a the direction of the mouths of the v shapes on contour lines

b which way is south from the map's compass

c examining the highest elevation on the map

d the direction of the points of the v shapes on contour lines

Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?

What object a collides with object b and bounces back its final momentum is?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?