8. In which phase of matter are the molecules of a substance farthest apart from each other? A) liquid B) gas C) solid D) crystal

The phase changes sublimation & deposition skip which state of matter? Solid Liquid Gas None of the above

3. Calculate: Click Reset. The momentum (p) of an object is the product of its mass and speed: $p=m\cdot v$ The units of momentum are kilograms-meters per second, or $kg\cdot m/s$ Click Play, and then click Pause just before the collision. A. What is the speed of the red sled? $\square $ B. What is the momentum of the red sled? $\square $ C. What is the speed of the blue sled? $\square $ D. What is the momentum of the blue sled? $\square $

Who developed the first alternating current electric system? George Westinghouse John D. Rockefeller Andrew Carnegie Thomas Edison Alexander Graham Bell

12. The current applied to the filament (cathode)in an X-Ray machine is proportional to:

1. Spend one day recording a variety of tasks that you do that involve doing work in the scientific sense. Also record the machines that allow you do certain tasks. Then spend the next day doing one or two of these tasks without using the machine. Answer the following questions. a. Was more or less work done using the machine? How do you know? b. Was the power output more or less with the machine? How do you know? c. What are your thoughts about using machines to accomplish work?

What is the quark composition of a proton? 1. uud 2. udd 3. csb 4. uds

Question 11 (Mandatory) (5 points) Which particle has the highest penetrating power? positron emission beta particle alpha particle gamma particle

Which is the best way to complete the text? Spencer observed that the jar's metal lid was easier to unscrew after it was __ realized the lid loosened up because metal expands when it gets hot. heated and he heated, consequently, he heated.He

2. A tennis player stretches out to reach a ball that is just barely above the ground and successfully 'lobs' it over her opponent's head. The ball is hit with a speed of $16.6m/s$ at an angle of 62.6 degrees. b. What is the y-component of the initial velocity? [Include units, no spaces. Round to two decimal places. Ex: $4.35m/s]$

Which of the following is the best example of a scientific law? The gravitational force between two objects is related mathematically to their mass and the distance between them. If an object is pushed off the edge of a table, it will fall to the ground. Gravitational force is the result of the curvature of the fabric of space-time.