& Energy Activity; Work and Power in a Stairwell Work against gravity: W =m g.h W P = Power: g on Earth = 9.81 m/s? Step on the scale. Determine your mass. Report your mass in kilograms. My Mass: 88 kg (use this as the mass) Work on Stairs Each student will walk up the stairs from the first floor to the second floor of the science building. The teacher will record the time and will report the time to the student. The students will return to the first floor. The vertical displacement (height) between the first and second floor is 6.0 meters. Each student will walk faster or jog up the stairs from the first floor to the second floor. The teacher will record the time and will report the time to the student. Calculate the work against gravity and the power exerted by walking and running up the stairs. Work against gravity (J) Time Power Mass of Student (kg) (s) (Watts)

& Energy Activity; Work and Power in a Stairwell Work against gravity: W =m g.h W P = Power: g on Earth = 9.81 m/s? Step on the scale. Determine your mass. Report your mass in kilograms. My Mass: 88 kg (use this as the mass) Work on Stairs Each student will walk up the stairs from the first floor to the second floor of the science building. The teacher will record the time and will report the time to the student. The students will return to the first floor. The vertical displacement (height) between the first and second floor is 6.0 meters. Each student will walk faster or jog up the stairs from the first floor to the second floor. The teacher will record the time and will report the time to the student. Calculate the work against gravity and the power exerted by walking and running up the stairs. Work against gravity (J) Time Power Mass of Student (kg) (s) (Watts)

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)...

See similar textbooks

Similar questions

Answer the following questions based in Energy Skate Park Experiment: 1. Calculate the ratio of the mechanical energy at B and mechanical energy at A (EB/EA) and (EC/EB).What do these ratios tell you about the conservation of energy?2. Is the mechanical energy conserved between A and B? Explain3. Is the mechanical energy conserved between B and C? Explain
A block 4-kg mass m located 7.0 m above the ground slid down on smooth inclind surface (35°) a. What is the speed of block when it reaches the bottom? b. How far does the block move on the incline smooth surface (15°) 4 kg Begin h d End 35° 150
Please answer the question correctly
I am extremly confused on this please help me.
Required Free Response Solve each free response problem. Record the answer in the space provided. Work can be done on a separate piece of paper. Remember to report the answer using 3 or 4 sig figs and the correct units. A 5 25 kg rock has 350 J of kinetic energy as it hits the ground How fast is it moving? Your answer 国 D M O O acer 口

TNT AR @N 19111:10 greater the gravitational potential energy. 12. A 50kg and 40kg man climbed a coconut tree with a height of 15m. Compare the potential energy of each man. A. The potential energy of each man is 7,350J and 5,880J. B. The potential energy of a 50kg man is 7,350J that is greater compared to a 5,880J potential energy of a 40kg man. C. The potential energy of 50kg and 40kg man who climbed a height of 15m are 7,350J and 5,880J respectively. D. The potential energy of a 50kg man is 7,350J that is greater compared to a 5,880J potential energy of a 40kg man thus the greater the mass of a body the greater the potential energy. 13. What is kinetic energy? A. Kinetic energy is the energy in motion. B. Kinetic Energy is the energy possessed by a moving object. C. Kinetic energy is the energy in motion, and it is expressed in Joule. D. Kinetic energy is the energy in motion, and it depends on the mass and velocity of the object. 14. Two cars A and B are travelling at a velocity of…
help on 3 part question please A. Calculate the work done by a force of 29 Newtons that moves a box through a displacement of 28 meters. B. Calculate the work done to lift a 31 kg box against gravity a height of 16 meters. C. Calculate the power if 3287 Joules of work gets done in 19 seconds
Practice with workcontext You want to practice using the notions of work and energy in physics situations. You imagine a block pulled on a horizontal surface (along an x-axis), without friction, for which you are looking for the final velocity. Known information: the mass of the block;the tension in the rope;the initial speed of the block;move. Schematization Draw a diagram of the object that interests us. Draw your x and y axes. Draw and name each force experienced by the object of interest and identify its displacement. Modelization Design a model to calculate the modulus of the block's final velocity as a function of known parameters, using the notions of work and energy. Then test your model with the following values: Block mass: 7 kg Initial Velocity: vi = (3.6 i ) m/s Displacement: s = (4.4 i) m Tension in the string: T = (17.2 i ) N
Question 1 Calculate the work needed for a bird of mass 120 g go to fly a height of 50 m from the surface of the earth Use the editor to format your answer
Help please
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
Calix whose mass is 56.2 kg is traveling at a speed of 12.8 m/s at the top of a 19.5-m high roller coaster loop. a. Calculate Calix's kinetic energy at the top of the loop. b. Calculate his potential energy at the top of the loop. c. Assuming negligible losses of energy due to friction and air resistance, determine Calix's total mechanical energy at the bottom of the loop. d. Calculate his speed at the bottom of the loop. Type your solution and answer here or upload the picture of your written solutions and answers.