A monkey climbs vertically on a vine. It’s motion is shown on the following graph of vertical position y vs time t.

What is the instantaneous speed of the monkey at time t= 5s

A) 5.0 m/s
B) 0 m/s
C) 2.5 m/s
D) 0.40 m/s

In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

Which of the following are guidelines to follow for obtaining accurate observations