Answer:
Webcam
Explanation:
A webcam is mainly used for taking images or videos from the computer. the webcam is a combination of two basic words i.e. web and camera. webcam can be connected to any computer via USB. It can be mounted on the desktop and sometimes it comes inbuilt on the laptops.
A webcam is also used for face recognition function to login to a computer system.
so according to the scenario, the most appropriate answer is a webcam.
Answer:
the depth of the shaft,
the carrying load of the skip and the mass of the counterweight,
the approximate size of the winding drum,
the approximate height of the headgear and the sheave wheel
Wiki is the correct answer
299,792,458 metres per second
