A tradesman sharpens a knife by pushing it against the rim, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Physics Expert

Academics

Home >> Physics

A tradesman sharpens a knife by pushing it against the rim of a grindstone. The 35 cm diameter stone is spinning at 200 rpm and has a mass of 18 kg. The coefficient of kinetic friction between the knife and the stone is 0.20. If the stone loses 10% of its speed in 10 seconds of grinding, what is the force with which the man presses the knife against the stone?

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M91084125

Have any Question?Write your Review or question?

Related Questions in Physics

Question the total translational kinetic energy of the

Question: The total translational kinetic energy of the molecules of a sample of gas at 421 k is 3.95x10^4j. How many moles does the sample comprise? Find the average translational kinetic energy of a single molecule. Th ...

A ball with a mass of 15 kg is observed to move with an

A ball with a mass of 1.5 kg is observed to move with an acceleration of 6 m/s2. What is the size of the net force acting on the ball? A 2.5-kg block being pulled across a table by a horizontal force of 80 N also experie ...

Question an object is 60 cm in front of a converging lens

Question: An object is 6.0 cm in front of a converging lens with a focal length of 10 cm . Part A Use ray tracing to determine the location of the image. Express your answer using two significant figures. The response mu ...

Question small birds can migrate over long distances

Question: Small birds can migrate over long distances without feeding, storing energy mostly as fat rather than carbohydrate. (Figure 1) Fat is a good form of energy storage because it provides the most energy per unit m ...

Question rotational kinetic energy and conservation of

Question: Rotational Kinetic Energy and Conservation of Energy Ranking Task The five objects of various masses, each denoted m, all have the same radius. They are all rolling at the same speed as they approach a curved i ...

A cogeneration power plant uses waste wood from the forest

A cogeneration power plant uses waste wood from the forest industry to generate heat and electricity for a nearby industrial park. It has a capacity to burn 80 MW of wood as thermal power. If the thermal power production ...

Question a solenoid 220 cm longand with a cross-sectional

Question: A solenoid 22.0 cm longand with a cross-sectional area of 0.500cm2 contains 415turns of wire and carries a current of 85.0 A. (a) Calculate the magnetic field in the solenoid. (b) Calculate the energy density i ...

Question suppose the emf generated by a coil rotating in a

Question: Suppose the emf generated by a coil rotating in a magnetic field is zero at t=0, and increases to its first peak at t0=0.11ms. A) What is the angular velocity of the coil in rad/s? B) At what time (relative to ...

Question a ring of radius r has total charge qa at what

Question: A ring of radius R has total charge Q. A) At what distance along the z-axis is the electric field strength a maximum? Express your answer in terms of R. B) What is the electric field strength at this point? Exp ...

Question the outstretched hands and arms of a figure skater

Question: The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center . When his hands and arms are brought in and wrapped around his ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As