The image formed by the pinhole camera is smaller than that of the object
true or false

Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i. e., a subspace of r 3 ). explain your reasoning

Which quantities are scalars? choose all that apply a. distance b. speed c. acceleration d. velocity

Wavelength, frequency, and energy are related. what happens to a wave as it’s wavelength gets shorter?