Pierre performs a maneuver with his yo-yo called "around the world", where he swings the yo-yo in a vertical circle When the yo-yo is at its highest point, which forces provide the centripetal acceleration? friction gravity normal force tension Two of the above choices are correct.

According to Galileo, a rolled ball eventually comes to a stop because it seeks its natural state of rest. of inertia. C of friction. all of the above

In which of the following is positive work done by a person on a suitcase? The person holds a heavy suitcase. The person lifts a heavy suitcase The person stands on a moving walkway carrying a heavy suitcase All of the answers None of the answers

The Great Pyramids are made of huge stones held together with mortar. A True B False

Which of the following is constant in Charles's law? Pressure Volume Temperature Both temperature and pressure

The distance it takes a vehicle to stop safely depends on which of these factors? A The pavement type, your tires and your brakes. B The driver's following distance and reaction time. C Whether you are driving uphill or downhill. D All of the above.

John Searle's Chinese room argument attempted to refute physicalism. True False

Keeping in mind the average reaction time, a motorist will travel 11 feet for each __ of speed before hitting the brake. 20 mph 10 mph 5 mph 15 mph

(a) Find the momentum of a bullet of mass 1.00 X10-9 slug traveling $700ft/s$ (b) Find the velocity of a bullet of mass $5.00\times 10^{-4}$ slug so that it has the same as the bullet in part (a)

2. Under most conditions a minimum following interval of __ will enable you to adjust speed or position appropriately. a. 2 seconds b. $3-4$ seconds c. 8 seconds d. Three car lengths

ch best compares radiation and conduction? Both transfer thermal energy from warm objects to cooler objects. Both can transfer energy through empty space. Both transfer thermal energy by electromagnetic waves. Both involve the transfer of energy through direct contact.