Despite the widespread impression that in recent years there has been some respite and slowdown in climate change of the planet, in fact the aggravation of the problem continues uninterruptedly. This is the conclusion of a new US scientific research that challenges the estimates of the Intergovernmental Panel on Climate Change (IPCC), which, in 2013, had seen a "break" to climate change.
It is possible, sometime in the coming decades, the solar activity to retreat and the temperatures to fall, but, according to experts, this phenomenon will not prevent the disaster that has brought the global warming.
The beam is fixed at end B and free at end A. It is loaded at end A with the concentrated force 2F. At the same time there is a temperature change ΔT. Calculate the length change Δx. (Modulus of elasticity E, Cross section area AS , Temperature coefficient a.)