The copper pipe has an outer diameter of 2.50 in. and an inner diameter of 2.30 in. if it is tightly secured to the wall and three torques are applied to it, determine the shear stress developed at points a and

b. these points lie on the pipe's outer surface. sketch the shear stress on volume elements located at a and b

1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?

A51 kg woman skis down a hill and her kinetic energy is 9.96e4 j. what is her speed?

1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted