Grinding wheat and sawing lumber were made easier by the use of hand tools horses water wheels              never mind                                      i found it  oxen                            out it was                                 water wheels

How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.

What is the equation for calculating rf values