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.

A 1.8 g potato core is submerged in water. When it is removed, its mass is 1.9 g. What is the percentage gain in the potato's mass? Round your answer to the neare st hundredth of a percent.

Components all connected on the SAME branch of a circuit are __ [EITHER of these] in series [NEITHER of these] in parallel

Question 30 of 30 Which of the following options best explains why the pressure in a car's tyres was found to be higher after a long journey than if was at the start of the journey? Enter your answer as a number 1 Some of the air in the tyres has escaped during the journey 2 The tyres have a greater volume at the end of the journey 3 The fyres are more worn at the end of the journey 4 The fyres are warmer at the end of the journey

A. Electrons will flow C. The light will turn off. The image to the left is a simple circuit If the switch is opened in this circuit what will happen? B. There will be no change. D. The light will turn on.

Mr Muyise wishes to use a block and tackle system to move 5bags of cement each of m ass 50kg up a tall building he is constructing. The pulley system he hopes to use consists of three pulleys in the fixed block and 2 pulleys in the movable block. His friend Mabeere advised that if the pulley system is 85% efficient, then no energy will be lost (wasted by t he machine) but he didn't understand I what his friend meant by that statement. (a)As physics student, what did Mabeere mean by that statement? (b) Explain to Mr.Muyise how energy is lost or wasted by the machine. (c) Find out how much energy Mr.Muyise must apply so as to move the cement up the b uilding