The force of friction on a refrigerator is 190 N. One person pushes the refrigerator with a force of +64 N. A second person pushes with a force of +110 N. What force must a third person use to move the refrigerator?

A. +16 N
B. +174 N
C. +190 N
D. +364 N

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?

The mantle is made up of which structural zones?

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .