Define the coefficient of friction

Assignment Help Physics
Reference no: EM1347814

Q. A 240 g ball and a 130 g ball are connected by a 32 cm-long massless, rigid rod. The structure rotates about its center of mass at 150 rpm.

What is the speed of the 130g ball?

Q. A child pulls a 3.00-kg sled across level ground at constant velocity with a light rope that makes an angle 34.0° above horizontal. The tension in the rope is 5.00 N. Assuming the acceleration of gravity is 9.81 m/s2, what is the coefficient of friction between the sled and the ground?

Reference no: EM1347814

Questions Cloud

Inefficiency in financial institutions operations : Discuss and explain how the credit crisis causes this to occur. Advise at least 2 proactive steps that financial institutions may take to provide similar influence without credit crisis.
During an investigation of possible violations of securities : Do you believe the provisions need to be strengthened to include forfeiture or reimbursement of any bonus or incentive-based compensation?
Determining line cost for three points : Points T1, T2 ,and T3 are 25 miles apart, and points C1 , C2, and C3 also are 25 miles apart. If telephone lines cost $1 per mile, determine the line cost for three?
What is the speed initially at the bottom : Sources A and B emit long-range radio waves of wavelength 530 m, with phase of the emission from A ahead of that from source B by 90°. The distance rA from A to a detector is greater than corresponding distance rB from B by 110 m. What is the magni..
Define the coefficient of friction : A 240g ball and a 130g ball are connected by a 32 cm-long massless, rigid rod. The structure rotates about its center of mass at 150rpm.
Java program for real estate agent : Write down java program for real estate agent. Program must perform the following tasks: ask users for average house price for the each of past 5 years for single family residence of 1500 square feet.
Elucidate why the general level of wages is higher : Elucidate why the general level of wages is higher in the United States and other industrially advanced countries. What is the single most important factor underlying the long-run increase in average real-wage rates in the United States.
Calculate the total cost of a loan : Suppose you are planning buying a used piano. $600 is the cash price of the piano. The firm selling the piano is willing to sell it to you for $50 down plus twelve monthly payments of $50.
What is the magnitude of the vertical component : What is the magnitude of the vertical component of its velocity as it strikes the ground.

Reviews

Write a Review

 

Physics Questions & Answers

  With what speed does the goalie slide on the ice

Two trains, each having a speed of 38 km/h, are headed at each other on the identical straight track. A bird that can fly 70 km/h flies off the front of one train while they are 68 km apart and heads directly for the other train. On reaching other tr..

  How fast is the osprey approaching

A simple pendulum has a mass of 0.150 kg and a length of 3.00 m. It is displaced by an angle of 12.0° and then released. What is the utmost speed?What is the maximum angular acceleration?What is the maximum restoring force.

  What was the mass of ice cube

A cube of ice is taken from the freezer at -9.4°C and placed in a 94 g aluminium calorimeter filled with 315 g of water at room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of ice cube.

  What is the frictional force, acting on the car

A car of mass 960 travels at a speed of 30 along the straight road. The driver sees a red traffic light ahead, and applies brakes. The coefficient of friction between the car tyres and the road is 0.88. Take the acceleration due to gravity to be 9.80..

  What friction torque is essential to decrease

In a car lift, the output plunger has a radius of 9cm. the weight of the plunger and the car is 21600N. What is the gauge pressure of the hydraulic oil used in the operating lift.

  What is the shear stress on the bolts

A box weighing 300N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 35.2° below the horizontal. If the coefficient of kinetic friction between the box and the floor is 0.540, how long does it take to mov..

  Establish how long the train blocked the crossing

Consider the conical pendulum with an 80.0 kg bob on a 10.0 m wire making an angle of 5.00 with the vertical as shown. Determine (a) horizontal and vertical components of the force exerted by the wire on the pendulum and (b) radial acceleration of th..

  How much thermal energy is created

A person who weighs 68 kg steps onto a spring scale in the bathroom, and spring compresses by 0.79cm. (a) what is the spring constant? (b) What is the weight of another person who compresses the spring by 0.34cm.

  How to figure out how much power is dissipated

You hang the rod vertically and attach a 74 kg mass to the bottom, and you observe that the bar becomes 1.74 cm longer. From these measurements, it is possible to conclude the stiffness of one interatomic bond in titanium.

  What is the coronal density in particles

A long solenoid has 80 turns/cm and carries current i. An electron moves within the solenoid in the circle of radius 3.10 cm perpendicular to the solenoid axis. The speed of an electron is 0.0330c (c = speed of light). Find current i.

  Compute the nail under a microscope

Students hypothesized that by running the electric current through the wire of the apparatus shown here, they could cause the non-magnetic nail to exhibit magnetic properties. What would be a reasonable way to test this.

  What is the velocity of the cart

A 95-{rm m}-long train begins uniform acceleration from rest. The front of the train has a speed of 25 {rm m/s} when it passes a railway worker who is standing 120m from where the front of the train started. What would be the speed of last car as ..

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