1. The hammer in the image on the right has all 100%... a. Potential energy right before... b. Kinetic Energy right before.. c. Mechanical energy... d. Work...

1.) A 15 kg mass is dropped from rest a distance of 18 m above the ground. Make certain you show all your work: a. Draw a picture. b. Indicate on your drawing where KE = 0 and where PE = 0 c. Using Conservation of Energy determine the final speed of the object just before it strikes the ground. d. Next, again showing all your work, use 1-dimensional Kinematics to solve the same problem. e. Which method, in your opinion is easier?

A child has two red wagons, with the rear one tied to the front by a stretchy rope (a spring). If the child pulls on the front wagon, the ____ increases. a. kinetic energy of the wagons b. potential energy stored in the spring c. both A and B d. not enough information

Question 6 When a student stretches a spring, what is the flow of energy? a. Energy goes into the spring and into the student. X b. There is no change in the energy of the spring, only for the student. c. There is no change in the energy of the student, but there is a change for the spring. d. Envery leaves the spring and goes to the student. e. Energy goes into the spring from the student.

17. Sketch this energy position graph. Label where the 5 spots (A to E) could be Energy vs Position Energy (J) Q 2500 1250 O -1250 -2500 Position (m) A. He is going his maximum speed B. He is stopped C. He is going his average speed D. He is going slow E. He is going fast PE KE

An arrow is drawn back so that 50 Joules of potential energy is stored in the stretched bow and string. When released, the arrow will have a kinetic energy of ____ Joules. Consider approx value of g as 10m/s/s. a. 50 b. more than 50 c. less than 50

A Moving to another question will save this response. 25 Question 15 of 2 stion 15 1 points Save "Here is an equation for one wave (wave 1) traveling on a string. What is the maximum transverse speed (in m/s). wave 1: y(x,t) = (24.0 mm) sin [(4.0 m^-1)x (9.6 s^-1)t." O 6.9E-02 O 2.3E-01 1.5E-01 4.0E-01 O none of these > A Moving to another question will save this response. « < Question 15 of 25 Ps DELL Pause e in parallel

2. The windmill in the image on the right has 100%... EFISOOM a. Potential energy right before... b. Kinetic Energy when... The kinetic energy of high speed winds contributes to its ability to do work. c. Mechanical energy... d. Work when... F4 F5 F6 F7 F8 F9 F10 & 96 立 %24

I. General setup - 0.5 m Object of known size (e.g., piece of paper) String Nut / Object II. Prediction questions and background physics For this experiment, you will release the object from rest and observe its subsequent motion. Before conducting the experiment or doing your analysis, answer the following questions based on your understanding of the physics of motion and conservation of energy:

Normal text BIUA Arial 12 1 3. The skateboarder in the image on the right has 100%... a. Potential energy.. b. Kinetic Energy when... c. Mechanical energy... d. Work when... Exit Ticket: lili