Consider the setup in Figure 1. In the setup, there is a volume of water with mass mw in an insulated container. Submerged in the water are a set of paddles, connected to a spindle. The spindle has an ideal string wrapped around it and is connected to a hanging mass m,. Assume the water and paddles are ina sealed, insulated container. Furthermore, considered the system to be the water (everything else is the environment). Upon release of the hanging mass the temperatureof the water begins to increase. a) What object(s) is/are doing work on the water? Please justify your answer. b) Is this an example of heating or work? Please justify your answer. c) What conditions are necessary such that the work done on the water is: W=mgh? Hint: Technically it is the force of tension that is spinning the paddles. So, how are the weight of the mass and the tension related? d) Once the mass is released it begins to fall at a constant speed. What must h be such that the temperature of the water increases by AT=T;? Please justify any assumptions you make. e) Now assume the mass is released, but it now accelerates at a rate of a=. What power is put into the water while increasing its temperature by AT=T:? Please give your answer

Consider the setup in Figure 1. In the setup, there is a volume of water with mass mw in an insulated container. Submerged in the water are a set of paddles, connected to a spindle. The spindle has an ideal string wrapped around it and is connected to a hanging mass m,. Assume the water and paddles are ina sealed, insulated container. Furthermore, considered the system to be the water (everything else is the environment). Upon release of the hanging mass the temperatureof the water begins to increase. a) What object(s) is/are doing work on the water? Please justify your answer. b) Is this an example of heating or work? Please justify your answer. c) What conditions are necessary such that the work done on the water is: W=mgh? Hint: Technically it is the force of tension that is spinning the paddles. So, how are the weight of the mass and the tension related? d) Once the mass is released it begins to fall at a constant speed. What must h be such that the temperature of the water increases by AT=T;? Please justify any assumptions you make. e) Now assume the mass is released, but it now accelerates at a rate of a=. What power is put into the water while increasing its temperature by AT=T:? Please give your answer

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Capt. Bo Wing left his house to drive to the gym 12km East of his house. After working out, he went to fetch his son from school 8.0km, 77° W of S. What is the DIRECTION of the resultant vector of Capt. Bo Wing?
Vectors Ã and B are shown in the figure. Vector Č is given by C = Ã – B. The magnitude of vector A is 10 m the magnitude of vector B is 12 m. Calculate the magnitude of vectorC. y 60° 370 X
Let B = 4.60 m at 60.0°. C and A have equal magnitudes. The direction angle of C is larger than that of A by 25.0°. Let A B = 28.5 m² and B - C = 38.1 m², Find the magnitude (in m) and direction (in degrees) of A. magnitude 8.75 ✔m direction 15 X° Submit Answer
The resultant of the two forces has a magnitude of 650 lb. Determine the direction of the resultant and the magnitude of P.
For the vectors shown in the figure, find the magnitude and direction of BxA
Solve the algebraic equation. Find the unknown (d) a= b-c/d a=50 b=41 c=16
Vector A has a magnitude of 23.0 m and makes of 30o above the positive x axis. Vector B has a magnitude of 13.0 m and is oriented 60o to the left of the y axis. 1) Find the magnitude of A-B. Express your answer in m. 2) Find the magnitude of 2A+B. Express your answer in m. 3) Find the direction of 2A+B. Express your answer in degrees. 4) Find the magnitude of −A+3B. Express your answer in meters. 5) Find the direction of -A+3B. Express your answer in degrees.
Vector A represents the displacement of a car that has travelled 46.23 m, 73.71 degrees west of south from the origin. Take East and North to be the directions of the positive x and y axes, respectively. What is the y- component of the displacement A? Express your answer in two decimal places.
Draw the vector C⃗=A⃗−B⃗. The orientation and length of the vector has to be accurate.