Two streams of water are mixed in an insulated container to form a third stream leaving the container. the first stream has a flow rate of 30 kg/s and a temperature of 90°c. the flow rate of the second stream is 200 kg/s, and its temperature is 50°c. what is the temperature of the third stream?

Six solutions are made, each with a y concentration of 1.0 μm and varying concentrations of ab as shown below. based on the concentrations, rank the solutions in decreasing order of reaction rate.

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

What is the scientific definition of energy that relates to work