Question 3 A 75 kg block is pulled by a rope at a constant speed over a rough floor for 4 meters. The force of tension
is 8 Newtons. How much energy is disspated by friction?

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

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

What structural formula represents 4 electrons shared between two atoms?