Describe the difference between a strong acid and a weak acid.

Men in the age of 18-34 years need to be able to run a marathon in 3 hours and 10 minutes to qualify for the Boston Marathon. How many seconds is this? Show your work.

Two teams are playing tug-of-war. The team on the right is pulling with 4320 N. The team on the left is pulling with 4380 N. Which direction does the rope move and with what force? 120 N to the right 60 N to the left 120 N to left 60 N to the right

Which of. the following was not a major advantage of Copernicus's Sun-centered model over the Ptolemaic model? (a) It made signifi. Cllntly better predictions of planetary positions in our sky.

What is your weight on Venus, assuming that the acceleration due to gravity on Venus is 8.875 m/s^2 and your mass is 50 kg.

What does a Halogen atom give off when it gains an electrons?

Imagine that you replace the block in the video with a happy or sad ball identical to the one used as a pendulum, so that the sad ball strikes a sad ball and the happy ball strikes a happy ball.

Under what conditions will an object experience a gravitational force? Under what conditions will an object experience an electric force? Under what conditions will an object experience a magnetic force?

A basketball player pushes down with a force of 34 N on a basketball that is inflated to a gauge pressure of 9 x 104 Pa. What is the diameter of contact between the ball! and the floor?

Match these terms with their definitions: 1. unit of electrical resistance ampere 2. unit of electromotive force or electrical potential ohm 3. unit for measuring the strength of an electric current volt 4. unit of electrical power watt

In which is momentum conserved: an elastic collision or an inelastic collision?