Physics Homework Aid
Physics holds significant importance among the natural sciences, elucidating life's wonders and ranking among the most challenging subjects to master.
QuestionAI is a rich and user-friendly physics problem solver for novice physicists, enabling exploration of atomic properties and interactions, alongside molecular trajectories under various forces. Furthermore, you can delve into the mysteries concealed amidst galaxies with fellow physics enthusiasts. Boldly pose your conjectures and queries to the AI, and authoritative answers will readily emerge.
- (b) Susie used water as the selvent in this experiment. When she repeated the experiment with a different set of pens , it did not work. She then used ethanol instead of water. Suggest why the experiment worked with ethanol but not with water.
- 8 The diagram shows a solid cylinder on a horizontal floor. pressure=(force)/(area) The cylinder has a pi r^2h volume of 1200cm^3 height of 40 cm. The cylinder exerts a force of 90 newtons on the floor. Work out the pressure on the floor due to the cylinder.
- Fill in the missing word at the end of this sentence: As a gas is heated the distance between the particles __ decreases increases stays the same
- Earth's orbit is about 9.4times 10^8 km long. There are about 8760 hours in a year. How far does the Earth travel in one hour, to 3 s.f . ? times 10km km [4]
- If two 5Omega resistors are connected in series, what is the total resistance? 2.5Omega 5Omega 10Omega 25Omega