Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Please help me with the following questions. 1. Part A You push your physics book 2.30 m along a horizontal tabletop with a horizontal push
Please help me with the following questions.
1.
Part A You push your physics book 2.30 m along a horizontal tabletop with a horizontal push of 2.60 N while the opposing force of friction is 0.650 N. How much work does your 2.60 N push do on the book? Express your answer in joules. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Work done by a constant force. Wstudent = 5.98 J Submit Previous Answers V Correct IDENTIFY and SET UP: Identify the appropriate value of o and use the relation W = Fps = (F cos b)s. EXECUTE: Since you are applying a horizontal force, $ = 0. Thus, Wstudent = (2.60 N) (cos 0) (2.30 m) = 5.98 J. Part B How much work does the friction force do on the book? Express your answer in joules. IVO AEd Wfriction = J Submit Request AnswerPart A A car is traveling on a level road with speed vo at the instant when the brakes lock, so that the tires slide rather than roll. Use the work-energy theorem to calculate the minimum stopping distance of the car in terms of vo, g, and the coefficient of kinetic friction uk between the tires For related problem-solving tips and strategies, you may want to and the road. view a Video Tutor Solution of Using work and energy to calculate speed. Express your answer in terms of vo, 9, and /k- AED ? S = Submit Request AnswerPart A A 4.00 kg block is released from rest on a ramp that is inclined at an If the speed of the block is 4.00 m/s when it reaches the bottom of the ramp, what was the work done on it by the friction force? angle of 60.0" below the horizontal. The initial position of the block is a vertical distance of 2.00 m above the bottom of the ramp. Express your answer with the appropriate units. HA ? Wf = Value Units Submit Request Answer Part B Part C How much work is done by friction when the ramp angle is 50.0? Express your answer with the appropriate units. ? Wf = Value Units Submit Request AnswerPart A One end of a horizontal spring with force constant 76.0 N/m is attached to a vertical post. A 3.00 kg block of frictionless ice is attached to the other end and rests on the floor. The spring is initially Part B neither stretched nor compressed. A constant horizontal force of 52.0 N is then applied to the can, in the direction away from the post. At the instant the spring is stretched 0.400 m, what is the magnitude of the acceleration of the block? Express your answer with the appropriate units. ? Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remainingPart A A pump is required to lift 820 kg of water per minute from a well 14.6 m deep and eject it with a speed of 17.7 m/s. How much work is done per minute in lifting the water? Express your answer in joules. VO ? W = J Submit Request Answer Part B How much work is done in giving the water the kinetic energy it has when ejected? Express your answer in joules. VO AEd ? WK= JStep by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started