- Anna was stirring a nice cup of hot peppermint tea with a cold silver spoon. She noticed that after a while the spoon was warm. What is the b explanation for her observation? Heat Energy left the tea and went into the spoon through convection Heat Energy left the spoon and went into the hot tea through conduction Heat Energy left the tea and went into the spoon through conduction Heat Energy left the spoon and went into the hot tea through convection
- 1. An object is spun around in a circle of radius 06 m with a period of 1.2s What is the magnitude of the velocity? Formula V=? r=0.6m r=1.25
- 6.Two shopping carts of equal mass are pushed by two different people. One cart accelerates three times as fast as the other cart Describe the forces acting on each cart. __ 6.2 Mass Resists Acceleration (page 87) 7. For a constant force, how does an increase in an object's mass affect its acceleration? __ 8. What does it mean for two quantities to be inversely proportional to one another? __ 9. Circle the letter showing how mass and acceleration are related. a. acceleration mass b. acceleration sim 1/mass c. acceleration mass^2 d. acceleration sim (1)/(2) mass 6.3 Newton's Second Law (pages 88-89) 10. Circle the letter of each quantity related by Newton's second law. a. mass b. force c. time d. acceleration
- A Behr model for Rubidium would have how many shells/rings? A 5 6
- 1) Two alpha particles are fired directly at each other in a vacuum. Both are originally travelling with a speed of 2.4times 10^5m/s 9 marks a).Find their separation at closest approach . (5) [2.4times 10^-12m] b) What is the electrostatic force of repulsion between the two charged particles at the position of closest approach? (2) [1.6times 10^-4N] c) Sketch what the electric field would look like in the space around and between the two charges at the closest separation . (2)
