Consider a system of an 85.0-kg man, his 15.5-kg dog, and the earth. The gravitational potential...

Question

Question

Answer 1

Answer #1

Change in potential energy depends only on vertical height so both the man and his dog will have the same change in height. L

Answer 2

Similar Homework Help Questions

When an 89.2-kg adult uses a spiral staircase to climb to the second floor of his...

When an 89.2-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2.29 x 103 J. By how much does the potential energy of a 17.5-kg child increase when the child climbs a normal staircase to the second floor?
a 65-kg man goes on a hike and climbs 110m high hill. (a) What is the...

a 65-kg man goes on a hike and climbs 110m high hill. (a) What is the increase in the gravitational potential energy of the man? (b) Where does this energy come from? (c) The man's body is 20 percent efficient; that is, for every 20 J that are converted to mechnical energy, 100 J of chemical energy are expended, with 80 J going into thermal energy. How much chemical energy is expended by the man during the climb?
A 3.2 kg sloth hangs 3.2 m above the ground. (a) What is the gravitational potential...

A 3.2 kg sloth hangs 3.2 m above the ground. (a) What is the gravitational potential energy of the sloth-Earth system if we take the reference point y = 0 to be at the ground? J (b) Assume the sloth drops to the ground and air drag on it is negligible. What is the kinetic energy of the sloth just before it reaches the ground? J (c) What is the speed of the sloth at this time?

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.
Help me! 11 A man pulls 100-Norabe shown. 20" stope 5 m high M Assuming that...

Help me! 11 A man pulls 100-Norabe shown. 20" stope 5 m high M Assuming that the crate moves at constant speed, the work 100 N done by the man is 12, An escalator is used to move 20 people (60 kg each) per minute from the fest noor of a partment store to the second floor, 5 m 5 m power required approximatelyt above, The 13. A force on a particle is conservative ir: of the motion, not this...

Only A and B please :) The equation mgy for gravitational potential energy is valid only...

Only A and B please :) The equation mgy for gravitational potential energy is valid only for objects near the surface of a planet. Consider two very large objects of mass m_1 and m_2, such as stars or planets, whose centers are separated by the large distance r. These two large objects exert gravitational forces on each other. The gravitational potential energy is U = -Gm_1 m_2/r where G = 6.67 times 10^-11 Nm^2/kg^2 is the gravitational constant. (a) Sketch...
Question 28 1 pts What is the gravitational potential energy of a 1- kg block at...

Question 28 1 pts What is the gravitational potential energy of a 1- kg block at rest on a table 1 m above the floor? 01 9.8 O 32 O 11.8) 00 Question 29 1 pts A particle is moved from point A to point B against a conservative force. Which statement is true about the work done? O cannot be recovered by moving it from B to A O does not depend on the path taken between A and...
1. A 67-kg base runner begins his slide into second base when he is moving at...

1. A 67-kg base runner begins his slide into second base when he is moving at a speed of 4.5 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to friction acting on the runner? (b) How far does he slide? 2. A 0.32-kg stone is held 1.4 m above the top edge of a...

A.) An isolated system has its kinetic energy decrease by 10 J while its potential energy...

A.) An isolated system has its kinetic energy decrease by 10 J while its potential energy increases by 5 J. What is the change in the system's internal energy (in J)? B.) A 2-kg ball is dropped from a height of 2 m. What is the change in the kinetic energy of the ball (in J) as it travels through this distance to the floor?