Current location - Health Preservation Learning Network - Healthy weight loss - [Mechanical efficiency] Talk about it from a kind person. The mid-term exam is coming, ORZ
[Mechanical efficiency] Talk about it from a kind person. The mid-term exam is coming, ORZ
Because the lifting is uniform and there is no acceleration, the total gravity is equal to the pressure.

P = (8+2) x1000x10 ÷ 0.4 = 2.5x10 to the fifth power.

w 1=2500×50= 1.25× 10^5

5 meters took 50 seconds and the speed was 0. 1 meter per second.

W = pt = FVT = 2000×10× 0.1× 50 =10.5 watt.

Efficiency =105 ÷1.25×105 = 80%

Related articles
  • How much is the broken wall cooking machine? Recommend popular products.
  • Can you lose weight without dinner? Reveal the fastest way to lose weight.
  • From a fat woman to a bamboo pole, Li Bingbing lost 20 Jin a month to lose weight.
  • Does salt have whitening effect?
  • Li Jiaqi live preview list 1. 1 1 Li Jiaqi live preview1.1.
  • How can I reduce the fat on my thigh?
  • What is the finale of Princess New Zhu Huan?
  • If you want to buy a slim body, you have to buy materials instead of buying them. Will the court accept it?
  • A complete book of recipes and practices for children's nutritious meals.
  • How does a little woman feel tall and thin when she wears a coat?

    • copyright 2024 Health Preservation Learning Network All rights reserved