Q:
# What are newtons?

A:

Newton is the unit of force in the international system of units, usually abbreviated "N." It is defined as the force required to move one kilogram of mass at an acceleration rate of one meter per second squared.

One newton is equivalent to 100,000 dynes of force, in the centimeter-gram-second system of units, and equal to about 0.2248 pounds of force, in the foot-pound-second system of units. It is named after Sir Isaac Newton, who described that force can bring changes in the movement of an object, in his second law of motion. This law states that force equals mass times acceleration (F=ma).

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Q:
## How do machines work?

A:A machine is any device that transmits mechanical energy or power into useful work. The simplest machines redirect an applied force or convert kinetic energy into potential energy. More complicated machines are powered by electricity or fuel and use moving parts and electronic circuitry to complete complex tasks.

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Q:
## When a leaf falls what force opposes gravity?

A:When a leaf falls, it is being accelerated by gravity to the ground. It is opposed, however, by air resistance, also known as the drag. The net force on a leaf is calculated by subtracting its weight from its drag.

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Q:
## What is the way to calculate flow rates in pipes?

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Full Answer >**To calculate the flow rate in a cylindrical pipe, the basic formula, which is flow rate is equivalent to pipe cross-sectional area multiplied by velocity, can be used.**Here the area is calculated as pi times pipe diameter squared and divided by four.Filed Under: -
Q:
## What is a example of a lever?

A:

Full Answer >**An common example of a lever is a see-saw.**Some other levers are pliers, crowbars, wheelbarrows, scissors, staplers, fishing rods, tweezers, nut crackers and fishing rods.Filed Under: