Asmall lightbulb is 1.06 m from a screen. a) if you have a convex lens with 20 cm focal length, where are the two lens locations that will project an image of the lightbulb onto the screen?
b) what’s the magnification in the first case (smaller distance from the lightbulb)?
c) what’s the magnification in the second case (larger distance from the lightbulb)?

In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of