Select the correct answer.
if an object is placed at a distance greater than twice the focal length of a convex lens, what type of an image will be produced?
a
real, upright, and enlarged
b. virtual, inverted, and small
c. real, inverted, and small
d.
virtual, upright, and enlarged
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Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?