Question

Explain the design of the windmill made by Newton in your own words?​

Answer 1

Answer:

Perfect questions for guys interested in maths..

2. The value of x + x(xx) when x = 2 is:

(a) 10, (b) 16, (c) 18, (d) 36, (e) 64

Solution:

x + x(xx)

Put the value of x = 2 in the above expression we get,

2 + 2(22)

= 2 + 2(2 × 2)

= 2 + 2(4)

= 2 + 8

= 10

Answer: (a)

Answer 2

Windmills are machines that convert energy from the wind into useful work by rotating. The rotation of a windmill often powers a motor or generator used to produce electricity or mechanical work (moving objects). Using wind power to turn the rotation of an object into useful energy and work dates back to 1st century Greece, and wind wheels are also well documented in 7th century Persia. They have been used to lift things up and down, especially water from the ground, to power machines that crush grain and process food, and more recently to power motors to generate electricity.

Windmills are good examples of wheel-and-axle machines. The wheel is able to rotate freely on an axis, harnessing the wind’s energy to move it by having sails, or shapes that can catch the wind.