Flip the triangle upside down with only 3 moves #shorts

The circumcentre of the triangle lies within the triangle only when the triangle is :

Why does water from a bucket not spill even when it is upside down while rotating in a vertical circle ?

A small insect starts walking away from a concave mirror along its principal axis. At a point (P) 20 cm from the mirror the image flips upside down. (a) What can you say about the size of the image at the instant it flips upside down – it is very large, very small or of the size similar to the insect? (b) Find the distance of the insect from point (P) where its image is thrice as large as the insect.

A student placed a gas jar containing air in the upside down position over a gas jar full of red-brown bromine vapours. He observed that the red-brown colour spread upwards into the jar containing air. Based on this observation, the student concluded that it is only the bromine vapour which moves up and diffuses into air in the upper jar, the air from the upper jar does not move down by diffusion into the lower jar containing bromine vapours. Do you agree with this conclusion of the student ? Give reason for your answer.

The no plate of a bus had peculiarity. The bus number was a perfect square. It was also a perfect square when the plate was turned upside down. The bus company had only five hundred buses numbered from 1 to 500. What was the number?

If you take a pail ow water and turn it upside down all the water will spell out, but if you take the pail of water, attach a rope to the handle, and turn it rapidly in a vertical circle thr water will not spill out when its is upside down at the top of the path why is this ? Explain it is terms of centrifugal force and also in terms of inertia.

A clock only with only dots marking 3, 6, 9 and 12 position has been kept upside down in front of a mirror. A person reads the time in the reflection of the clock as 4.50. What is actual time?

A clock with only dots marking 3, 6, 9 and 12 positions has been kept upside down in front of a mirror. A person reads the time in the reflection as 9.50. What is the actual time?