Take a taxi from Newcastle Airport to downtown
From Newcastle Airport to Newcastle City, take a bus from the airport for 28 minutes to the city railway station, and take a taxi for 18 minutes. The specific location and route are shown in the figure< br />
take the high-speed railway from Shanghai station to Suzhou station, and then take No.19 or NO.119 to the destination.
Why do many people think that "when people walk, the ground does work on people's friction"? The reason is that when analyzing this problem, people are often treated as a particle model; Particle model is an idealized model for the convenience of studying problems. Whether an object can be regarded as a guide depends on the concrete analysis of specific problems; When we study whether the friction force does work when people walk, because the work of the force is related to the displacement of the point of action of the force, and the point of action of the friction force is on the palms of people's feet, and the friction force and its point of action change when people walk, we can't treat the whole person as a particle here. So how to explain the change of energy when people walk? It should be analyzed from the viewpoint of energy balance; Energy balance is the universal law of nature. When walking, the internal force between human muscles does work, which makes the bioenergy in human body into kinetic energy and other forms of energy
from the above analysis, we can see that seemingly simple problems are not simple; It warns us that when we analyze problems, we should not only stay at the superficial phenomenon of the problem, but should make in-depth analysis, from the outside to the inside, in order to reveal the essence of the phenomenon
from the perspective of work, in the third case of s force acting point, we can't treat people as a particle, but treat the feet locally. When the ground faces the sole of the foot, the foot doesn't move, and when the foot moves upward, the support disappears, so the support doesn't work. Where does a person's gravitational potential energy come from? From the point of view of kinetic energy theorem of particle group, the sum of work done by external force and internal force among various parts of human body is equal to the increment of kinetic energy, that is, the sum of work done by internal force and gravity is zero, which indicates that the internal force among various parts of human body does positive work. From the perspective of the relationship between work and energy, if the supporting force of the ground does work, then the ground must provide energy for human, In fact, the ground can't provide energy for people, so it can't do work for people. In fact, it is muscle contraction work, that is, human internal force work, so as to convert the chemical energy in the human body into mechanical energy and internal energy (four fifths of the heat energy of the human body comes from muscle contraction), that is, human gravitational potential energy is converted by consuming the biological energy of the human body.
bus line: No.19, the whole journey is about 15.7km
1. Take No.19 from fangwan street, pass 22 stops, and reach Shengpu road Zhongxin Avenue East Station
2. Walk about 860 meters to Baide (Suzhou) Technology Co., Ltd
bus line: No.111 → Metro Line 1 → No.303, the whole journey is about 26.2km
1. Walk about 730m from Fengting avenue to Weiting Experimental Primary School Station
2. Take No.111, pass 11 stops, reach Zhongnan Street South Station
3. Walk about 180m, reach Zhongnan Street Station
4. Take Metro Line 1, pass 15 stops, reach Tongjing North Road Station
5 Walk about 200 meters to Caixiang New Village North Station
6, take bus 303, pass 2 stops to Caihong new village station (also take bus 262, 2)
7, walk about 210 meters to Suzhou
take 126 to the West comprehensive protection station of the park, change it to 148, and get off at Dongsha Hunan Station. Shahu park is northeast of the platform.