Homework Answers
1.
negative
negative
negative
2.
zero
negative
positive
7.
zero
======
Comment in case any doubt, will reply for sure.. Goodluck
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these correct , I feel a little off about some
62 Questions General Instructions: Answer...
#13) multi-question. Provided useful equations. Question 13 [8] A baseball player slides to 3rd base. A...
#13) multi-question. Provided useful equations.
Question 13 [8] A baseball player slides to 3rd base. A friction force (1) acts against his motion as indicated in the figure. He needs to slide a distance d of 2.5 m to be safe. (a) Use the work-energy theorem with non-conservative forces to write down an equation to find the actual distance the player slides. (b) If he starts sliding with an initial velocity of 5.0 m/s and the coefficient of kinetic friction...
For 7-9: A skydiver falls ot constant, terminal velocity in the presence of air resistance 7....
For 7-9: A skydiver falls ot constant, terminal velocity in the presence of air resistance 7. (3 pts) The net work done on the skydiver is.. a) positive b) negative c) zero 8. (3 pts) The non-conservative work done on the skydiver is.. a) positive b) negative c) zero 9. (3 pts) The mechanical energy of the skydiver is. a) conserved c) decreasing b) increasing For each problem, show all work for full credit. Use at least three significant figures...
Please answer SHOW WORK for ALL questions. 64. A50% efficient hydroelectric power plant generates electricity from...
Please answer SHOW WORK for ALL questions.
64. A50% efficient hydroelectric power plant generates electricity from water failing a height of kg/s. If the maximum possible power output of the plant was 27.0 110 m and at a rate of D) 5100 ka/s A) 25,00okgs ?) 50,000 kg C) 100,0oo kg/s Ans: B 45 AG 0%g block slides from point A down a frictionless ono to point B. After the block passes point B, a friction force opposes the motion...
I got the first side done and included the answers, I just need the second part...
I
got the first side done and included the answers, I just need the
second part
PHY 220 Laboratory Experiment 9 Prelab: WORK AND ENERGY Name In the lab you will make use of a setup that is similar to the situation shown below. The picture shows a block of mass M on an incline elevated an angle 0above the horizontal. The block starts from rest at point P. Neglect friction between the block and the incline.) 1. Block starts...
Work done by gravity positive, negative, or zero (c) After the block reaches the bottom, and cont...
please help with 8.5, 8.6, 8.7, 8.8
work done by gravity positive, negative, or zero (c) After the block reaches the bottom, and continues sliding back up the bowl until it comes to rest, is the additional work done by gravity positive, negative, or zero? (d) It the bowl is ot frictionless, will the block slide back up to the same height it (c) When friction is present, and after the block reaches the bottom, is the additional was released...
Please do not answer unless you are sure it is correct. thank you. " A mass...
Please do not answer unless you are sure it is correct. thank
you.
" A mass hanging from a vertical spring is somewhat more complicated than a mass attached to a horizontal spring because the gravitational force acts along the direction of motion. Therefore, the restoring force of the oscillations is not provided by the spring force alone, but by the net force resulting from both the spring force and the gravitational force. Ultimately, however, the physical quantities of motion...
Four questions. Please answer with all work shown so I can learn the methods. Thanks (1)Two...
Four questions. Please answer with all work shown so I can learn the methods. Thanks (1)Two 2 cm-diameter disks spaced 2.187 mm apart form a parallel-plate capacitor. The electric field between the disks is 464,475.983 V/m. An electron is launched from the negative plate. It strikes the positive plate at a speed of 29,140,951.095 m/s. What was the electron's speed as it left the negative plate? (2)Two equally charged, 3.549 g spheres are placed with 2.925 cm between their centers. When...
Page 206 Practice Problem 7.13: If the skateboarder's speed at the bo it would be without...
Page 206 Practice Problem 7.13: If the skateboarder's speed at the bo it would be without friction, how much boarder's speed at the bottom of the quarter-pipe is exactly half of what be without friction, how much work does the friction fore do? Answer: - 551J. 7.7 Conservative and N a tions 205 object Skateboarder on the quarter pipe again EXAMPLE 7.13 Skat Cential es than forces this example we will cale work done by a Bosco hoarder's speed at...
Please answer the four questions below. I attached the previous post. A 200. kg iceboat is...
Please answer the four questions below. I attached the previous post. A 200. kg iceboat is accelerating in the +x direction on a frictionless frozen lake. ->a) What is the iceboat's acceleration in m/s2? ->b) At t = 0, the ice boat has an initial velocity of 2.00 m/s. What was the iceboat's initial momentum? (in kg m/s) ->c) What was the iceboat's initial kinetic energy? (in Joules) ->d) What is the kinetic energy after going through the 20.0 m...
need help for answering all questions and in need of an explanation for each answer. Physics...
need help for answering all questions and in need of an
explanation for each answer.
Physics 11A, Spring 2020 Midterm 1.2020-03-04 Question 1- 12 multiple choice 1. The "strobe photograph" below shows a ball rolling along a surface. The camera flashed once a second, and the time is shown above each image. Which graph shows the ball's velocity vs. time? 01 2 3 4 5 6 7 8 9 10 11 12 OOO OOO OOOO L 2. An object's velocity...
#13) multi-question. Provided useful equations.
Question 13 [8] A baseball player slides to 3rd base. A friction force (1) acts against his motion as indicated in the figure. He needs to slide a distance d of 2.5 m to be safe. (a) Use the work-energy theorem with non-conservative forces to write down an equation to find the actual distance the player slides. (b) If he starts sliding with an initial velocity of 5.0 m/s and the coefficient of kinetic friction...
For 7-9: A skydiver falls ot constant, terminal velocity in the presence of air resistance 7. (3 pts) The net work done on the skydiver is.. a) positive b) negative c) zero 8. (3 pts) The non-conservative work done on the skydiver is.. a) positive b) negative c) zero 9. (3 pts) The mechanical energy of the skydiver is. a) conserved c) decreasing b) increasing For each problem, show all work for full credit. Use at least three significant figures...
Please answer SHOW WORK for ALL questions.
64. A50% efficient hydroelectric power plant generates electricity from water failing a height of kg/s. If the maximum possible power output of the plant was 27.0 110 m and at a rate of D) 5100 ka/s A) 25,00okgs ?) 50,000 kg C) 100,0oo kg/s Ans: B 45 AG 0%g block slides from point A down a frictionless ono to point B. After the block passes point B, a friction force opposes the motion...
I
got the first side done and included the answers, I just need the
second part
PHY 220 Laboratory Experiment 9 Prelab: WORK AND ENERGY Name In the lab you will make use of a setup that is similar to the situation shown below. The picture shows a block of mass M on an incline elevated an angle 0above the horizontal. The block starts from rest at point P. Neglect friction between the block and the incline.) 1. Block starts...
please help with 8.5, 8.6, 8.7, 8.8
work done by gravity positive, negative, or zero (c) After the block reaches the bottom, and continues sliding back up the bowl until it comes to rest, is the additional work done by gravity positive, negative, or zero? (d) It the bowl is ot frictionless, will the block slide back up to the same height it (c) When friction is present, and after the block reaches the bottom, is the additional was released...
Please do not answer unless you are sure it is correct. thank
you.
" A mass hanging from a vertical spring is somewhat more complicated than a mass attached to a horizontal spring because the gravitational force acts along the direction of motion. Therefore, the restoring force of the oscillations is not provided by the spring force alone, but by the net force resulting from both the spring force and the gravitational force. Ultimately, however, the physical quantities of motion...
Page 206 Practice Problem 7.13: If the skateboarder's speed at the bo it would be without friction, how much boarder's speed at the bottom of the quarter-pipe is exactly half of what be without friction, how much work does the friction fore do? Answer: - 551J. 7.7 Conservative and N a tions 205 object Skateboarder on the quarter pipe again EXAMPLE 7.13 Skat Cential es than forces this example we will cale work done by a Bosco hoarder's speed at...
need help for answering all questions and in need of an
explanation for each answer.
Physics 11A, Spring 2020 Midterm 1.2020-03-04 Question 1- 12 multiple choice 1. The "strobe photograph" below shows a ball rolling along a surface. The camera flashed once a second, and the time is shown above each image. Which graph shows the ball's velocity vs. time? 01 2 3 4 5 6 7 8 9 10 11 12 OOO OOO OOOO L 2. An object's velocity...
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