A credit card is set on top of a plastic tray and the tray is slowly accelerated across a table toward a waitress, taking the credit card with it. The patron of the restaurant pushing the tray does not touch the credit card. What type of force causes the credit card to accelerate?

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot