During a lens lab, Jerome and Michael placed a 4.5-cm tall night light bulb a distance of
42.8 cm from a lens. The image of the light bulb was inverted and appeared 26.5 cm
from the lens
a. Determine the focal length of the lens being by Jerome and Michael.
b. Determine the expected height of the image of the bulb.

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?

Ain is , is 's of ? 0.62 0.79 1.27 1.50