气势汹汹

Mnemonic symbol: a balloon. The Queen of Hearts is disappointed by her balloons. She expected them to float upwards, but in the space station's bathroom, They float randomly in all directions.

势 = 力 + 执 : The space station's scientists want to conduct an experiment in the space station's bathroom (Ø4) to find the momentum (势) and potential energy (势) of a pendulum in zero gravity. Everything is already set up, they just have to push the power button (力)—but Sherlock Holmes (sh) insists on seeing their license (执) first before he allows it.

汹 = 凶 + 氵 : Xu Xian (xu) is surprised to find that when he pours water from a water bottle (氵) over a vicious demon mask (凶) lying on the floor in front of the engine ((e)ng1) the mask multiplies the water into a vicious torrent (汹).