An object executes circular motion with constant speed whenever a net force of constant magnitude acts perpendicular to the velocity. What happens to the speed if the force is not perpendicular to the velocity?  Answer and explain in your scratch paper.  (10 points)

Which of the following shapes is the correct scientific term for the shape of the Earth?

What is the name of the process by which rocks are physically broken up without any change in their chemical composition?

Match the evidence of weathering to the corresponding weathering mechanism.

Rank the three most abundant components of the Earth’s atmosphere from 1 (most abundant) to 3 (third-most abundant).

I am confident I will do well in this course.

I will take the AP English Language and Composition exam in May. 

For a simple harmonic oscillator, answer yes or no to the following questions and explain. (a) Can the quantities position and velocity have the same sign? (b) Can velocity and acceleration have the same sign? (c) Can position and acceleration have the same sign? Record your answer with your reasoning to your scratch paper. Make sure to submit it to Gradescope at the end of the exam.  (10 points) 

The figure shows a golf ball passing through a windmill at a miniature golf course. The windmill has 8 blades and rotates at an angular speed of 2.46 rad/s. The opening between successive blades is equal to the width of a blade. A golf ball of diameter 3.21 x 10-2{“version”:”1.1″,”math”:”10-2″} m is just passing by one of the rotating blades. What must be the minimum speed of the ball so that the next blade will not hit it?  Show all work and write your answer on your paper and upload it to Gradescope at the end of the exam.

Which of the following are mechanical weathering processes?   I. Frost wedging   II. Exfoliation   III. Root pry (by tree roots)   IV. Ablation