Calculate the change in potential energy of a 75kg hiker who walks from the 400m high...

Question

Question

Calculate the change in potential energy of a 75kg hiker who walks from the 400m high trailhead to the top of a 3400m peak.

science physics

Answer 1

Answer #1

Initial potential Energy = mgh, = 75x9.88400 = 294000 J final potential Energy = 75x9.8x3400 - 2499000 T change in P.E. = 220

Answer 2

Similar Homework Help Questions

A hiker, of mass 80kg, walks up a mountain, 600m above sea level, to spend the...

A hiker, of mass 80kg, walks up a mountain, 600m above sea level, to spend the night at the top in the first overnight camp. The second day she walks to the second overnight camp, 400m above sea level. The third day she returns to her starting point, 200m above sea level. What is the potential energy of the hiker at the third camp (relative to sea level)?
Problem 6.29 TO of 13 Constants A 72.5-kg hiker starts at an elevation of 1300 m...

Problem 6.29 TO of 13 Constants A 72.5-kg hiker starts at an elevation of 1300 m and climbs to the top of a peak 2590 m high Part A What is the hicer's change in potential energy? Express your answer to three significant figures and include the appropriate units. APE= Value Units Submit Request Answer Part 3 What is the minimum work required of the hiker? Express your answer to three significant figures and include the appropriate units.
Calculate the Gibbs energy change from the standard cell potential following redox reactions at 350 K....

Calculate the Gibbs energy change from the standard cell potential following redox reactions at 350 K. AG MPEO 7. Ag (aq) + Mg(s) S Ag(s)+ Mg2 (aq) (a)

Calculate the change in potential energy of a 89.3 kg man when he takes an elevator...

Calculate the change in potential energy of a 89.3 kg man when he takes an elevator from the first floor to 48th floor, if the distance between floors is 4.53 m.
Calculate the change in potential energy of a 87.2 kg man when he takes an elevator...

Calculate the change in potential energy of a 87.2 kg man when he takes an elevator from the first floor to 43th floor, if the distance between floors is 4.17 m.
calculate equilibrium constant and free energy change please Calculate the cell potential, the equilibrium constant, and...

calculate equilibrium constant and free energy change please Calculate the cell potential, the equilibrium constant, and the free-energy change for Ca(s) + M12+ (aq)(1M) = Cap+ (aq)(1M) + Mn(3) given the following E' values: Ca2+ (aq) + 2e + Ca(8) E° = -1.50 V Mn2+ (aq) + 2e - →Mn(s) E° = -0.58 V Part A Calculate the cell potential 0.920 V Previou Correct Part B Calculate the equilibrium constant I ALCO ? Submit Previous Answers Request Answer X Incorrect;...

Question 1 The change in electric potential energy is the negative of the work done by...

Question 1 The change in electric potential energy is the negative of the work done by the electric force. the work done by the electric force. the negative of the electric force. the electric force. . Question 2 The electric potential difference is . the same as the change in the electric potential energy. the change in the electric potential energy times the charge. the charge divided by the change in the electric potential energy. the change in the electric...
What is the change in gravitational potential energy of a 50-kg person who climbs a flight...

What is the change in gravitational potential energy of a 50-kg person who climbs a flight of stairs with a height of 5 meters and a horizontal extent of 6 meters? A. 250 J B. 300 J C. 2500 J D. 3000 J
What makes “high-energy bonds” “high-energy”? Give some examples of phosphate groups with a high group-transfer potential...

What makes “high-energy bonds” “high-energy”? Give some examples of phosphate groups with a high group-transfer potential and explain how they differ from phosphate groups with a low group-transfer potential. Why do thioester bonds have a high group-transfer potential?

Calculate the potential energy of a child jumping on a trampoline with a mass of 30...

Calculate the potential energy of a child jumping on a trampoline with a mass of 30 kg at the peak of a 2 m jump