A baseball player is running to second base at 5. 03 m/s. When he is 4. 80 m from the plate he goes into a slide. The coefficient of kinetic friction between the player and the ground is 0. 180, and the coefficient of static friction is 3. 14. What is his speed when he reaches the plate?

On a test the graders have a mean of 77 and a standard deviation of 8. if we can approximate the distribution of these graders by a number distribution what percent of the students. a) scores higher than 77? b) should pass the test (grades > 60)? c) should fail the test (grades < 60)?