Find the coefficients of static and kinetic friction

Assignment Help Physics
Reference no: EM13292193

A dockworker loading crates on a ship finds that a 18-kg crate, initially at rest on a horizontal surface, requires a 85-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 55 N is required to keep it moving with a constant speed. Find the coefficients of static and kinetic friction between crate and floor.

Reference no: EM13292193

Questions Cloud

What is burleighs wacc : The firm has a pre-tax cost of debt of 8.1 percent. The risk-free rate is 4.3 percent and the market rate of return is 13.6 percent. What is Burleigh's WACC?
Determine the power of the electron beam : Electrons in an x-ray tube are accelerated through 110 kV and directed toward a target to produce x rays. Calculate the power of the electron beam
The reaction will not proceed spontaneously : The reaction will not proceed spontaneously
Find the capacitor voltage and the inductor current : Find the capacitor voltage (you choose referece direction force), the inductor current(you choose reference direction for iL,the energy stored in the capacitor, and the energy in the inductor.
Find the coefficients of static and kinetic friction : A dockworker loading crates on a ship finds that a 18-kg crate, initially at rest on a horizontal surface, Find the coefficients of static and kinetic friction between crate and floor
Reflection describing brain lateralization : Write a 200- to 300-word reflection describing brain lateralization and its role in language.
Which one of following is an example of diversifiable risk : Which one of the following is an example of diversifiable risk? a. Income tax rates are revised by the federal government. b. The unemployment rate rises to 10.5 percent. c. The Fed lowers its discount rate. d. A CEO is fired for conduct unbecomin..
What is the attractive force on a charge q1 of 1µc : the electric field srength E due to an infinite line of chargeis given by E = λ/(2πrεo), where λ is the charge per unit length and r is the radial distance from the wire. a, show that this formular for E still has the units of N/C.
What is the investment cost of machine for capital budget : Total interest expense for 5-years is expected to approximate $350,000. What is the investment cost of the machine for capital budgeting purposes?

Reviews

Write a Review

Physics Questions & Answers

  Find the displacement of the particle after a given time

A particle of charge +14 µC and mass 3.54 10-5 kg is released from rest in a region where there is a constant electric field of +490 N/C

  Obtain the frequency of the source

A source delivers an AC voltage of the form ?v = 96.2 sin (66?t), obtain the frequency of the source

  At what temperature is the waste heat exhausted

What volume of water at 0°C can a freezer make into ice cubes in 1.4 hours, if the coefficient of performance of the cooling unit is 8.0 and the power input is 1 kilowatt.

  Find the firefighters speed

A 80.5 kg firefighter slides down a pole while a constant frictional force of 300 N retards her motion. Find the firefighter's speed just before she collides with the platform

  Compute the amplitude of resulting simple harmonic motion

A block of mass m is attached to a spring (spring constant k)which is attached to a wall, find the amplitude of the resulting simple harmonic motion?

  Calculate its mass and average density

Rhea, one of Saturn's moons, has a radius of 765 km and an acceleration due to gravity of 0.278 m/s2 at its surface. Calculate its mass and average density.

  What is the angle when he releases the rope

A 56-kg student runs at 4.2m/s , grabs a hanging 10.0-m-long rope, and swings out over a lake. He releases the rope when his velocity is zero. What is the angle when he releases the rope

  Find the rate of angular acceleration of the disk

A grinder consists of a solid 15 kg disk with a diameter of 57 cm. A when active, the disk rotates at a rate of 83 rad/sec. find the rate of angular acceleration of the disk

  What is the fundamental frequency of the wavelength of tube

You have an open tube that is 1.3m long. what is the fundamental frequency of the wavelength of the tube

  What is the total work done by this net force

A net force of 32 N accelerates a 4.7-kg mass over a distance of 15 m. What is the total work done by this net force

  Calculate the exact number of protons

Then, calculate the exact number of protons and express the answer in scientific notation with the correct number of significant digits.

  Find the vertical component of the waters initial velocity

The archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of water expelled from the fish's mouth, What is the vertical component of the water's initial velocity

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd