1.Was the mechanical energy of the falling mass conserved?Di
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/08/24 11:08:18
1.Was the mechanical energy of the falling mass conserved?Discuss the possible sources of error.
2.When a ball at rest is dropped,can it rebound to a greater height than its original height?
3.A 2 kg rock is released from rest at a height of 29 m.Ignore air resistance and determine the kinetic energy,gravitational potential energy,and total mechanical energy at each of the following heights:20m; 15m; 5m; 9m.
4.A man runs with a speed of 6 m/s off a platform that is 10 m above the water.How fast if he moving when he hits the water?Ignore air resistance.
朋友,可以用英文答吗?
2.When a ball at rest is dropped,can it rebound to a greater height than its original height?
3.A 2 kg rock is released from rest at a height of 29 m.Ignore air resistance and determine the kinetic energy,gravitational potential energy,and total mechanical energy at each of the following heights:20m; 15m; 5m; 9m.
4.A man runs with a speed of 6 m/s off a platform that is 10 m above the water.How fast if he moving when he hits the water?Ignore air resistance.
朋友,可以用英文答吗?
1.If the retarded force can be negligible,mechanical energy of the falling mass conserved.The error source comes from resistance,buoyancy and other similar things.
2.The ball can't rebound to a greater height than its original height because of resistance.If the retarded force can be negligible,the ball only can rebound to its original height.
2.The ball can't rebound to a greater height than its original height because of resistance.If the retarded force can be negligible,the ball only can rebound to its original height.
翻译:the total amount of energy is conserved.
【the energy of falling water can be used _____ electicity.】
急,The writer conserved bandwidth
Rain was falling as I ran out of the
英语翻译Unavoidable fabricationdefects of the mechanical modules
---using of computers,not only was the teachers' energy save
the mass of 与 a mass of 有啥区别?
英语翻译1.Closure of the valves of the heart produces mechanical
the mass
英语试题1._______ is the center of our planetary system was a di
英语翻译1.the size of eniac's numerical "word" was 10 decimal di
mass的用法the mass of 和 a mass of 有什么区别?