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 change in shape of an object by bending, compressing or stretching can only occur if __ INEITHER of thesel more than one force is applied to the object only one force is applied to the object [BOTH of thesel
- The unit used to measure the SPRING CONSTANT is __ newton (N) newton metre (Nm) newtons per metre (N/m) metre (m)
- 6) On Earth, a scale shows that "yo mama'weighs 6000 N. a) What is yo mama's mass? (612kg) b) What would the scale read on the moon (g=1.60m/s^2) ? (979N) 7) If you had an infinitely long bowling alley (the pins are __ somewhere...) with no friction and you rolled a bowling ball straight down the alley,what will the bowling ball's motion be like? 8) State the action-reaction pair of forces for the following situations. Also draw a free-body diagram for ONE of the objects in each situation, labeling all appropriate forces. Kicking a brick wall with your foot. b) Catching a baseball with your glove. c) Moe and Larry sharing a fist bump. 9) According to Newton's 3^rd law of motion actions have an equal and opposite reaction. Bob the linebacker, who has a mass of 70kg, sees a huge 120kg running back with the ball and tries to tackle him. Bob tackles him with a 500N force, then bounces off while the running back barely steps backwards after the hit. a) How much force does the 120kg running back exert back onto 70kg Bob? b) Why is it that Bob accelerates much more than the running back from the same collision?
- The average distance between the Sun and Mars is about 228 million km. What is this distance in standard form? Give your answer in kilometre s (km).
- (ii) With the laptop screen in the position shown in part a(i)George sees an image of the lamp on the screen. George tilts the screen forwards as shown below. When the screen is tilted forwards it is easier for George to see the words on the screen. What happens to the reflected ray of light when the screen is tilted? __ (b) George listens to music on his headphones. Complete the sentence below using words from the box chemical electrical gravitational potential sound thermal The useful energy change in the headphones is from __ energy into __ energy.