An object is 30 cm away from the surface of a convex lens. If the focal length of the lens is 10 cm, how far away is the image?

After a big snowfall, you take your favorite rocket-powered sled out to a wide field. the field is 195 m across, and you know that your sled accelerates at a rate of 3.65 m/s2 when the rocket is on. how much time will it take the sled to cross the field starting from rest, assuming the rocket is on the whole time?

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?