The work, in joules, required to stretch a spring 5 inches from its natural length of 4 inches is given by \int\limits _{0}^{5}10x\d x. How much work is required? () A. 0 joules B. 50 joules C. 75 joules D. 125 joules 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
11.Abbr.wPhysicsThe transfer of energy from one physical system to another, especially the application of a force to move a body in a certain direction. It is calculated as the product of the force and the distance over which it is applied and is expressed in joules, ergs, and foot-poun...
Calculate the work in joules needed to expand a balloon from 5mL to 3.350L against standard atmospheric pressure. Assume a reversible process. Reversible Process: A thermodynamic process is called reversible if it can be turned back ...
The work done in lifting a 10-kilogram object to a height of 2 meters is ___ joules. A. 10 B. 20 C. 196 D. 200 相关知识点: 试题来源: 解析 D。解析:功等于力乘以距离,这里力等于重力 F = mg = 10×9.8 = 98N,距离为 2m,所以功 W = Fs = 98×2 = 196J,约为 200J。反馈...
How much work (in Joules) must be done on an electron to accelerate it from rest to a speed of 0.950c?Special Relativity and Kinetic Energy:Motion of objects at a speed approaching the speed of light is described using the relativistic approach. This is don...
energy where mechanical effort is involved, measured in joules. A joule is defined in work terms as a force of 1 newton moving its point of application through 1 metre. see SI UNITS. Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005 ...
energy where mechanical effort is involved, measured injoules.A joule is defined in work terms as a force of 1 newton moving its point of application through 1 metre. seeSI UNITS. Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005 ...
Note: "MJ" is Megajoule (Million Joules). Add them up to make sure the totals match!The JouleThe basic unit of energy and work is the Joule (J):1 Joule is the work done by 1 Newton moving 1 meter 1 J = 1 N × 1 m The Joule has the units N m, or kg m2/s2 (because a...
W = Fd Thus: W = 10 N * 20 meters(where the symbol "*" represents times) So: Work = 200 joules Ajoule, a term used in physics, is equal to the kinetic energy of 1 kilogram moving at 1 meter per second.
Definition Energy is defined as the capacity to do work. Formula The energy stored in an object due to its position and height is known as potential energy and is given by the formula: P.E. = mgh Unit The SI unit of energy is Joules (J). Power Definition Power is defined as the ra...