64 Answered Questions for the topic Work

12/12/19

A jet of mass 4,277 kg lands on an airstrip, stopping after a distance of 727 m and has an initial landing speed of 29 m/s.

What is the work done, in Joules, by non-conservative forces to stop the jet?

11/04/19

does this argumentive essay look good? it is about euthanasia (the right to die)

 The argument I have picked is Euthanasia. An argument against the right to die. I don't see how my case proves against undoing attention. I do not draw any conclusion on the argument. The... more

10/25/19

A projectile of mass 5.0 kg is shot

A projectile of mass 5.0 kg is shot horizontally with an initial speed of 17 m/s from a height of 25.0 m above a flat desert surface. For the instant before the projectile hits the surface,... more

10/22/19

work in physics

1.(a) How much work is done to move a 1.80 X 103-kg Chevrolet Tahoe from rest to 35.2 m/s on a level road?(b) If this takes place over a distance of 251 m, what is the average net force applied to... more

07/31/19

Work done by the Magnetic Force?

The magnetic part of the Lorentz force acts perpendicular to the charge's velocity, and consequently does zero work on it. Can we extrapolate this statement to say that such a nature of the force... more

07/11/19

How can tangential acceleration from a radial force be explained?

A mass is attached to a rope, and put into a circular motion. If I pull the string from the center, the tangential speed of the mass will increase (by conservation of angular momentum). I am... more

06/28/19

Finding work done in an inclined plane

I'm trying to solve a textbook problem that says:A boy in a wheelchair (total mass 47.0 kg) has speed 1.40 m/s at the crest of a slope 2.60 m high and 12.4 m long. At the bottom of the slope his... more

06/21/19

Work, power and energy

Heights:Point A=65m, Point B=52 m, Point C=25mThe total mass of the roller coaster is 650 kg. a) If it takes a force of 2760 N [parallel to the track] to pull the roller coaster up to point A, and... more

05/03/19

Should I watermark my work?

I am an art student who is trying to upload some digital work on a website. Do graphic designers typically watermark their work? If no, how do graphic designers protect their work?Update: The... more

03/25/19

Time and work question

three persons a ,b and c decide to work in such a way that a and c work together on 1st day ,b alone on 2 nd day , a and c on 3 rd and so on on alternate days .how many days will be required to... more

02/28/19

BC Calculus Work Question - Read Below

Find the work done in pumping all of the water out of a conical reservoir of radius 10 feet and height 8 feet. (Assume the reservoir is full and water weighs 62.5 lbs/ft3. Case 1: The water is... more

09/05/18

A roofer and an apprentice are roofing a newly constructed house. In one day, the roofer completes 1 3 of the job and the apprentice completes 1 4 of the jo

A roofer and an apprentice are roofing a newly constructed house. In one day, the roofer completes 13 of the job and the apprentice completes 14 of the job. How much of the job remains to be done?

07/16/18

Weight lifter lifts 500N barbell from the floor to a height of 5m. How much work is done.?

Science word problem

06/04/18

Amy made $228 for 12 hours of work. How much would she make for 5 hours at work?

Im not good at math at all but i need help! somebody please lol

03/18/18

Substitute teaching calculations

I can only make $1180 a month as a substitute teacher. At location A I make $98 a day, location B $85, and location C $95. What is the least amount of days I could work a month while working at... more

02/19/18

Mechanics Question - Finding speed reduction time

A car of mass 1000 kg has its speed reduced from 81 km/h to 54 km/h by brakesproducing a force of 1250 N. How long does this take? Determine the work done bythe brakes on the car. Determine... more

01/23/18

Ted's class collects aluminum cans to sell to the recycling center. The center pays $0.002 for each kilogram of aluminum.

T=total amount they'll revive  N=number of kilograms of cans 

01/18/18

Physics Power and Work

A 49kg bicycle rider delivers an average of 0.28 hp. The mass of the bicycle is 2.1kg and the hill she is climbing is 245m tall. How much time will this take?

11/01/17

You want to take your 1.7kg textbook down from a 2.0m shelf. It moves at a constant speed of 1.0 m/s. How much work is done?

I need this answered as soon as possible I am stuck and don't know how to calculate the force. So I cannot use the formula.
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