Question

The quantity Ax denotes the difference in the x-coordinate between two locations, and it is measureable in meters. True False

Answer 1

Solution:

1.

TRUE

The quantity $\Delta x$ denotes the difference in the x-coordinate between two locations, and it is measurable in meters. Usually, $\Delta x$ can be positive, negative or zero.

2.

TRUE

According to Newton's third law, the force each skateboarder applied to each other is equal and opposite.

3.

Longer stopping time for the snow drift.

The impulse is equal to change in momentum. The car in both the cases stops, thus, change in momentum or imopulse is same.

4.

Destructive interference of waves occur when and where a trough from source #1 meets a crest from source #2.