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.

13. A crowbar is used to lift a packing case. The load is 200mm from the fulcrum and an effort o 50N is applied 125m to the other end of the crowbar. Determine the load in newtons. 50N^ast 1.25M/ 0.2M=312.5N

Question 3 of 7 What is the pendulum test used for? Measuring the slope of a surface Measuring the rise on a series of steps Measuring the coefficient of friction of a surface Measuring the placement of slip resistant strips on a slope

Most smooth floors are likely be slippery if the Coefficient of Friction is? Above 0.36 Below 0.36 Above 0.72 Around 0.51

7 Two people are pushing a 1000 kg car They accelerate it from rest to 3m/s in 5 seconds. a What is the combined force of the two people pushing the car? b What assumptions have you made in calculating your answer to part a? c How will the real force from the people needed to produce this acceleration be different to your answer to part a?

Coal is loaded into a train car while it is still moving If the mass of the train car doubles but the speed is decreased by half, what happened to the train's momentum? a It doubles b It gets cut in half It stays the same d it triples