## Physics Exam Questions### Question 15A block is placed on a rough wooden plane. It is found that when the plane is tilted 30° to the horizontal, the block will slide down at constant speed. The coefficient of kinetic friction of the block with the plane is:- A. 0.866- B. 0.577- C. 0.500- D. 4.90- E. 1.73### Question 16Which of the following five quantities is NOT an expression for energy? Here \(m\) is mass, \(g\) is the acceleration due to gravity, \(h\) is a distance, \(F\) is force, \(a\) is an acceleration, \(P\) is power, and \(t\) is time.- A. \(ma\)- B. \(\frac{1}{2} m v^2\)- C. \(mgh\)- D. \(Fd\)- E. \(Pt\)For both questions, select the correct option and proceed to save and submit your answers. **Physics Problem Set: Elastic Collisions and Forces****Question 17***A billiard ball rolling across a table at 1.30 m/s makes a head-on elastic collision with an identical second ball which is initially at rest. The speeds of ball 1 and ball 2 [in m/s] after collision respectively are:* - A. 0, 1.30 - B. 1.30, 0 - C. 0, 0 - D. 1.30, 1.30 - E. 0.65, 0.65---**Question 18***The figure shows an overhead view of three particles on which external forces act. The magnitudes and directions of the forces on two of the particles are indicated. What are the magnitude and direction of the force acting on the third particle if the center of mass of the three-particle system is moving at a constant velocity?*The diagram accompanying Question 18 shows a coordinate plane, with forces acting on particles positioned along the x and y axes:- On the negative x-axis, there is a force of 5N acting in the negative x-direction (left).- On the positive x-axis, there is a force of 3N acting in the positive x-direction (right).- On the negative y-axis, there is a force of 2N acting in the negative y-direction (downward).*Select the correct answer:* - A. greater than 2 N, leftward---*Students are encouraged to save their work and submit their answers by clicking the "Save All Answers" button.*

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A QUESTION 15 A block is placed on a rough wooden plane. It is found that when the plane is tilted 30° to the horizontal, the block will slide down at constant speed. The coefficient of Kinetic friction of the block with the plane is: OA.0.866 OB. 0.577 OC. 0.500 O D.4.90 OE. 1.73 is NOT an expression for energy? Here m is a mass, g is the acceleration due to gravity, h and d are distances, F is a force, vis a ndt is time.

A QUESTION 15 A block is placed on a rough wooden plane. It is found that when the plane is tilted 30° to the horizontal, the block will slide down at constant speed. The coefficient of Kinetic friction of the block with the plane is: OA.0.866 OB. 0.577 OC. 0.500 O D.4.90 OE. 1.73 is NOT an expression for energy? Here m is a mass, g is the acceleration due to gravity, h and d are distances, F is a force, vis a ndt is time.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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