calculus

A cable that weighs 6 lb/ft is used to lift 750 lb of coal up a mine shaft 500 ft deep. Find the work done.

Show how to approximate the required work by a Riemann sum.

  1. 👍 0
  2. 👎 0
  3. 👁 404

Respond to this Question

First Name

Your Response

Similar Questions

  1. calculus

    find the work done in winding up a 175 ft cable that weighs 4.00 lb/ft?

  2. science(check answers)

    1. A 2. C 3. A 4. D 1. Coal, oil, and natural gas are inexpensive sources of fuel which do not cause pollution when used. A. true B. false 2. One reason people around the world use coal as an energy source is: A. It is

  3. Physics

    A 7900- helicopter accelerates upward at 0.90 while lifting a 1100- frame at a construction site. A) What is the lift force exerted by the air on the helicopter rotors? B)What is the tension in the cable (ignore its mass) that

  4. Physics

    In a repair shop a truck engine that has mass 429 kg is held in place by four light cables (Figure 1) . Cable A is horizontal, cables B and D are vertical, and cable C makes an angle of 37.1∘ with a vertical wall. Tension in

  1. Calculus

    A cable hangs between two poles of equal height and 40 feet apart. At a point on the ground directly under the cable and x feet from the point on the ground halfway between the poles the height of the cable in feet is

  2. trig

    find the exact values of the six trig functions of the angle. -750 sin(-750)= cos(-750)= tan(-750)= csc(-750)= sec(-750)= cot(-750)= I've tried this question over and over again and i cannot get it right. i believe -750 is in the

  3. physics

    An initially stationary 15.0-kg crate of cheese wheels is pulled via a cable a distance d= 5.70m up a frictionless ramp to a height of h= 2.50m, where it stops. What is the potential energy of the crate after it is lifted? How

  4. math

    A 750 kg skier rides a 2830 m long lift to the top of a mountain. The lift makes an angle of 14.6˚ with the horizontal. What is the change in the skier’s gravitational potential energy?

  1. Physics

    A 165.8-N bird feeder is supported by three cables as shown in the figure below. Find the tension in each cable. left cable - ??? right cable - ??? bottom cable - ??? www.webassign.net/sercp9/4-p-019.gif

  2. science

    Two ice skaters stand face to face and "push off" and travel directly away from each other. The boy has a velocity of 5 m/s and he weighs 750 N. The girl weighs 480 N. What is the girl's velocity?

  3. Science

    An example of a product made from a renewable resource is A) electricity made from coal. B) coal slurry made from coal. C) ethanol fuel made from corn. ****? D) plutonium made from uranium.

  4. Science

    Which of the following is not part of the process of producing electricity from coal? 1. Coal is lifted onto a platform to give it potential energy before burning. 2. Coal must be burned to release heat. 3. Heating water produces

You can view more similar questions or ask a new question.