Johanna makes the table below to organize her notes about centripetal forces. Which type of force should she place in the cell marked X? tension gravity friction normal

Suppose a car moves at constant speed along a mountainroad. At what places does it exert the greatest and leastforces on the road: (a) at the top of a hill, (b) at a dip betweentwo hills, (c) on a level stretch near the bottom of a hill?

What is the role of equations in this course?

The change in internal energy during one complete cycle of a heat engine A. equals the net heat flow into the engine. B. equals zero. C. equals the heat energy exhausted from the engine. D. equals the heat energy entering the engine.

Which of the following best describes malleability? A) shine B) ability to be hammered thin C) hardness D) ability to be made into wire

What makes metals like copper conductive to electricity?

I hand you two spheres. They have the same mass, the same radius, and the same exterior surface. I claim one is a solid sphere and the other is hollow. Can you determine which is which without cutting them open?

A bullet is fired horizontally at a speed of 50 m/s. What is its initial vertical velocity? A 0 m/s B25 m/s C 43.3 m/s D 50 m/s

Which of the following describes the formation of air convection currents?

Whose view was that the Cosmos was based on the belief that every occurrence in the physical universe had logos behind it and that is where life originated?

Difference between force and weight