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.

The Egyptians used "rollers (large logs) to help them move blocks up the ramps. Explain why this would have reduced the amount of work they had to do __ 2 A coal power station wastes 650 J out of every 1000 J of the coat's store of chemical energy. a Calculate the efficiency of the power station. __ Extension b The diagram shows the main steps in generating energy from coal In a power station. Suggest two steps where energy might be wasted, and for each step, suggest how the wasted energy is transferred. __

(b)The pressure of the helium in the balloon is 100000 Pa. The volume of the balloon is 0.030m^3 The balloon is compressed at a constant temperature causing the volume to decrease to 0.025m^3 No helium leaves the balloon. Calculate the new pressure in the balloon. __ New pressure= (2)

Which of the following could act as a source of heat for a fire? Choose four options then select Submit. Remember Choose 4 options A lamp. A lit cigarette. An aerosol spray. A cooker. A clothes iron.

hich of these options would not cause a nucleus of an atom to be unstable? It has too many protons. It has too many electrons. It is too large. It has too many neutrons.

The half-life of carbon-14 is 5730 years. How long will it take for the number of carbon- 14 nuclei in a sample to drop to a quarter of the original number?