Usually, long spanner are preferred more than short spanner to unscrew a very tight and rusted nut. please help me to do this question.​

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

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

This is the substance(s) formed in a chemical reaction.