O Potential EnergyA Homework Sheet.docx: Phy xO #countingO Ask A Question | Wyzant A:Grades and AttendanceM Inbox (955) - matthew.gran xM New answer to "An object4 Charleston Charter School X+A csdschools.instructure.com/courses/80142/files/5145367?wrap=1= Physics H - Bolus - 1(A-B) > Files > Homework Sheet.docx2020/2021 - Semester 2 - M.Homework Sheet.docxAccountHomeDownload Homework Sheet.docx (138 KB)ModulesDashboardPage <> of 2ZOOM +2AssignmentsQuizzesCourses2. An archer uses 2000 J of energy to pull a bow string 0.15 m. What is the forceconstant (k) of the bow string?GradesCalendarFilesGivens:Formula:Answer:15PagesInboxDiscussionsUnknown:PeopleHistorySyllabus3. A spring is compressed 0.035 m inside a dart gun. What is the potential energyof the spring? (k = 500 N/m)ConferencesMasteryCollaborationsGivens:Formula:Answer:StudioGoogle DriveOffice 365Unknown:HelpMasteryConnectMastery4. A compressed spring has 20,000 J of stored energy. If the spring constant (k)is 1500 N/m, how far is the spring compressed?ChatCisco WebexGivens:Formula:Answer:BadgesQuaverUnknown:McGraw-HillResourcesClever Login PageEdgenuity Course-

This question is based on the Elastic potential energy, which is defined as the Potential Energy…

2. An archer uses 2000 J of energy to pull a bow string 0.15 m. What is the force constant (k) of the bow string? Givens: Formula: Answer: Unknown: 3. A spring is compressed 0.035 m inside a dart gun. What is the potential energy of the spring? (k = 500 N/m) Givens: Formula: Answer: Unknown: 4. A compressed spring has 20,000 J of stored energy. If the spring constant (k)

2. An archer uses 2000 J of energy to pull a bow string 0.15 m. What is the force constant (k) of the bow string? Givens: Formula: Answer: Unknown: 3. A spring is compressed 0.035 m inside a dart gun. What is the potential energy of the spring? (k = 500 N/m) Givens: Formula: Answer: Unknown: 4. A compressed spring has 20,000 J of stored energy. If the spring constant (k)

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)...

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A spring is used to launch a box along the frictionless track shown below. The spring constant is 345 N/m and the spring is initially compressed by 15.6 cm. The mass of the box is 80.8 g. Point Z is 46.4 cm vertically below the launch point. a. What is the potential energy held in the spring before it is launched? J b. Using Conservation of Energy, what is the speed of the box as it passes point Z? m/s
1. A box with a mass of 3.0 kg is accelerated from rest by a constant force across a floor at a rate of 1.7 m/s for 6.5 s. (a) How much work does the force do on the box? (b) How much power is produced by the force in moving the box?
A man climbs onto a wall that is 6.16 m high and gains 1864.02 J of potential energy. What is the mass of the man? No unit is required for the final answer.
2. Hannah with a mass of 56.2 kg) is traveling at a speed of 12.8 m/s at the top of a 19.5-m high roller coaster Loop in a THEME park. Find the following: A. Hannah’s kinetic energy at the top of the loop. B. Hannah’s potential energy at the top of the loop. C. Assuming negligible losses of energy due to friction and air resistance, determine Hannah’s total mechanical energy at the bottom of the loop (h=0 m). D. Determine Hannah’s speed at the bottom of the loop.
A 1.5 kg ball is thrown upward with a velocity of 6 m/s. a). What is the kinetic energy of the ball as it is thrown upward? b). What is the gravitational potential energy of the ball when it reaches its highest point? c). To what height above the thrower’s hand will the ball rise? (for c only, round answer to nearest hundredth).
7. A 1650 kg car accelerates up a hill by applying a force of 4.61 × 10³ N parallel to the hill. The hill is at an incline of 13°. m 2016 d = 17 m 13° A. What is the net work done on the car as it travels 17 m up the hill? (Hint: calculate the work done by each force in the system. There are 3 forces. The net work is the sum of the works done by each individual force.) b. What is the change in kinetic energy for the car? at the bottom of the hill. How fast is it moving at the top The car is travelling at a speed of 16 of the hill? I= c) 74°F
1. A roller-coaster car with a mass of 1200 kg starts at rest from a point 20 m above the ground. At point B, it is 9 m above the ground. [Express your answers in kilojoules (kJ).] a. What is the initial potential energy of the car? b. What is the potential energy at point B? c. If the initial kinetic energy was zero and the work done against friction between the starting point and point B is 40 000 J (40 kJ), what is the kinetic energy of the car at point B 2. The time required for one complete cycle of a mass oscillating at the end of a spring is 0.80 s. What is the frequency of oscillation?
A spring scale that reads in grams uses a 10.0-cm-long spring. Hanging a water bottle from the scale stretches the spring to 11.5 cm and causes the scale to read 450 g. What is the elastic potential energy of the stretched spring? Express your answer with the appropriate units. Usp = Submit μÀ Value Request Answer Units ?
A 1.6 m tall man lifts 2.1 kg box from the ground to a height 2.2 m above the ground. What is the potential energy in joule of the box relative to the head of the man? Answer:
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Q 3. Three cars are traveling at 30km/h, 50km/h and 200km/h, respectively. Each speed corresponds to a certain kinetic energy. a) Note down the expression for the kinetic energy of a moving object with a velocity v. b) Note down the potential energy for an object lifted up from the ground to height h. c) Based on a) and b) find an expression for the height as a function of velocity by assuming that the kinetic energy equals the potential energy of the same object. In other words find h(v) from which the object would need to be dropped and calculate the height so it has a speed of 30 km/h, 50 km/h or 200 km/h on impact with the ground. Assume free fall without air resistance d) Comment on your chances of survival if you are involved in head-on collisions for the three different speeds.