A ball is thrown horizontally from the top of a tower at the same instant that a stone is dropped vertically. Which object is traveling faster when it hits the level ground below if neither of them experiences any air resistance.

A mass on a spring undergoes a simple harmonic motion. When the mass is at its maximum distance from the equilibrium position, which of the following statements about it are true?

A stretched string is observed to have four equal segments in a standing wave-driven at a frequency of 480 Hz. what driving frequency will set up a standing wave with five equal segments?

Grandfather clocks are designed so they can be adjusted by moving the weight at the bottom of the pendulum up or down. Suppose you have a grandfather clock at home that runs slow. Which of the following adjustment of the weight would make it more accurate? 

Sharps containers should be emptied and reused once they are full.

Beakers are ideal for precise volume measurements.

Which of the following is NOT a bloodborne pathogen?

Which agency administers CLIA?

Describe one routine maintenance task for a microscope.

Which agency is responsible for enforcing workplace safety regulations in the U.S.?