Tick() the correct answer A spanner is an example of:
1. screw
ii. wheel and axle iii. pulley
iv. wedge

Me with these questions if you’re it sure don’t answer

What materials must dams have to produce electricity, and what must occur?

If the dimensions of a cube-shaped cell with a length,height, and width of 1 micrometer were to double, what would be the cell's new ratio of surface area to volume? a.3 to 1 b.4 to 3 c.1 to 2 d1 to 6