they have become more complicated and with better materials.
also the are in almost all the things we use
No, the speed of light has remained constant over time according to current scientific understanding.
A pulley changes speed by dividing the distance that needs to be moved by the force applied. When a smaller pulley is used, the speed increases because the force is concentrated over a smaller distance. Conversely, a larger pulley decreases speed by spreading the force over a larger distance.
A changing the direction of force is generally achieved using a fixed pulley or a movable pulley, depending on the specific setup. Both types can redirect the force being applied to a different direction without changing the amount of force.
Pulley.
Of a single pulley wheel, only that it changes the direction of the force ie: from overhead. > On a block and tackle system, 2 or more pulley wheels are used in a certain way to produce mechanical advantage. The simplest type of block and tackle offers a mechanical advantage of 2
THey are a pulley.
how the anemometer changed over time
The laws of physics have not changed over time. Our understanding of them has changed over time.
how has coal mining changed over time
People changed over time by growing up.
no they have changed over time. no they have changed over time.
yess
how has neils bohr model changed over time
well it has changed over time bye people dancing it different styles.
how the seismograph change over time
his skills changed
how has deleware changed from 1776