Write down five uses of laser technology

(i) Laser treatment is used in eye surgery where it used to retain the lost vision without the use of spectacles and contact lens.

(ii) Laser is used for skin treatment to remove scars, hair treatment

(iii) Laser beams are used for drilling of holes into objects and in welding

(iv) Laser tag games are quite popular nowadays where laser lights are used in guns to spot the players

(v) To construct a three dimensional image laser technology is very useful

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2