eliankslulyasandaJ eliankslulyasandaJ
  • 03-12-2016
  • Mathematics
contestada

The strength of a cable is proportional to the square of its diameter. If a 2-cm cable will support 800kg, how much will a 3-cm cable support?

Respuesta :

Underhill
Underhill Underhill
  • 03-12-2016
strength [is proportional to] d^2
strength1/(d1)^2 = strength2/(d2)^2
800kg/(2cm)^2 = strength2/(3cm)^2
strength2 = 800 kg * (3 cm)^2/(2 cm)^2
strength2 = 800 kg * 3^2/2^2
strength2 = 800 kg * 9/4
strength2 = 1800 kg
Answer Link

Otras preguntas

The frequency of violet light is 7.5x10 to the 14th power hertz. What is the wavelength?
Douglas wants to draw a circle graph showing the favorite colors of his friends. When he polled his friends asking each their favorite color, 25% of his friends
What does an acid+base make
Force and Motions: Pushes and pulls of all kinds are________.
Compare and contrast an electromagnet and a permanent magnet.
Why is carbon unique among the elements?????
Force and Motions: Pushes and pulls of all kinds are________.
The volume of a cylinder with height to radius ratio of 4:1 is 108 pie centimeters cubed. Find the radius and height of the cylinder.
A man exchanged a dollar bill for change and received 7 coins, none of which were half dollars. How many of these coins were dimes?
__________ means to move from one region to another. When animals regularly move as a group from one region to another and back, it's a ______________.