Module 10. Momentum: Homework Problem 9.39 - Enhanced - with Feedback A firecracker in a coconut...
A firecracker in a coconut blows the coconut into three pieces. One piece flies west at 20.0 m/s. Another piece with twice the mass of the first flies north at 10.0 m/s. The third piece has thrice (3x) the mass of the first piece. What is the speed and direction of the third piece? Show all of your work for the following problem, including units in each step, and a written explanation for what each step is doing and why...
See the "BEFORE picture below. It shows a 6-kilogram firecracker initially at rest. Then the firecracker explodes into three pieces. In the picture labeled "AFTER, two of the pieces are shown; the third piece has not been drawn yet 3 a) BEFORE the explosion, how much is the total momentum? b) AFTER the explosion... .how much is the mass of the third piece? ...how much is the speed and direction of the third piece? (Hint: Break down all momentum vectors...
eurse Home <Post-class assignment - Week 9 Problem 21.49 - Enhanced - with Feedback Serine has pK, values of 2.21 and 9.15. At what pH will serine exist in the indicated form? - Part A H₂N. LÓ HEN HO 50% HO 50% Express your answer using two decimal places. V AEO O ? pH = 5.68 Submit Previous Answers Request Answer o RH ost-class assignment - Week 9 oblem 21.49 - Enhanced - with Feedback Part B H₂ď i o...
Problem 21.1 - Enhanced - with Feedback A heat engine does 150 J of work per cycle while exhausting 380 J of waste heat. You may want to review (Pages 574-577). Part A What is the engine's thermal efficiency? Express your answer using two significant figures. IVO ALPR O 0 ? Submit Request Answer Provide Feedback
1- A block slides along a frictionless surface at 2.4 m/s. A second 3.5-kg block, sliding at a faster 7.5 m/s, collides with the first from behind and sticks to it. The final velocity of the combined blocks is 4.6 m/s. What was the mass of the first block? 2-A 15 g ball of clay traveling west at 4 m/s collides with a 50 g ball of clay traveling 30° north of east at 3.5 m/s. What is the speed...
Course Home <Homework 11 Exercise 7.42 - Enhanced - with Feedback You may want to reference (Pages 295 - 299) Section 7.4 while completing this problem. Sulfuric acid dissolves aluminum metal according to the following reaction: 2 Al(s) + 3H2SO4 (aq) + Al(SO4)2 (aq) + 3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 15.9 g Review Part A What minimum mass of H2SO, would you need? Express your answer in grams. HVO AED O ?...
A watermelon is blown into three pieces by a large firecracker. Two pieces of equal mass m fly away perpendicular to one another, one in the x direction another in the y direction. Both of these pieces fly away with a speed of V = 35 m/s. The third piece has three times the mass of the other two pieces. Part (a) Write an expression for the speed of the larger piece, that is in terms of only the variable V. Part (b) What is the numeric value for...
Exercise 13.60 - Enhanced - with Feedback Calculate the molarity of each solution. = 2.0 x 10-2 M Part 0.0314 mol of glucose in 74.7 mL of solution Express your answer using three significant figures. IVO ACO O a? M Submit Previous Answers Request Answer
Problem 17.1 - Enhanced - with Feedback Part A How long does it take light to travel through a 2.6-mm-thick piece of window glass? Express your answer in seconds. VO AXO 0 ? Submit Request Answer
Help please Problem 9.35-Enhanced-with Feedback Part A Censtarts I Periodic Table A 26 g ball of clay traveling east at 3.4 m/s collides with a 34 g bal of clay traveling north at 26 m/s What is the movement direction of the resulting 60 g blob of cday? Express your answer in degrees north of east o north of east Part B What is the speed of the resulting 60 g blob of clay? Express your answer with the appropriate...