Science

1 . Explain why undercoatquakes happen . Include the well-nigh venerable arasAccording to the theory of collection plate tectonics , the primer s gall is formed by a number of large plates that knock up very slowly in various directions on the earth s surface . Most earthquakes occur near a storehouse ad quem amongst two plates . As one plate pushes other(prenominal) or over another , great stresses build up in the rock along the edges of the plates be pass wet friction prevents them from sliding foregone each other . in the obliterate the stresses become great adequate to rupture the rock . The edges of the plates slew a short outer space in frigid directions , causing an earthquake . The great the stresses that take in reinforced up , the greater are the results of earthquake2 . Describe the factors that cause a blowhole to eruptThe hot , melted rock - or magma - lies sibylline inside the earth . The magma is squeezed up through the freshness . sometimes , the magma is suck upd up through the vol cigareto , and the vent erupts . When a outlet erupts , it can hurt people and molest property . savoury lava that flows down a volcano can burn homes . save , scientists look for waning signals to predict when a volcano testament erupt . Small earthquakes near a volcano pansy mean that magma is rising inside . A bulge on a volcano also might mean that the volcano is about to erupt3 . Why is static galvanizing energy grievous ? Why does it happen ? How can you control itMost galvanical systems consist of numerous bear down ond articles , each of which exerts an galvanisingal force on all the other burgeon forths , and vice versa Suppose for a act that you could borrow all the electrons from a friend s physical expression and put them into your pocket . The mass of the electr ons would about 20 grams . With no electrons! , your friend would have a wide positive charge . You , on the other authorise , would have a abundant negative charge in your pocket .

If you stood 10 m from your friend , the attractive force between the two of you would be about 1032 tons - more than 100 ,000 times greater than the gravitational force between the earth and the sun . seemingly , your pocket would rip off long before you had salt away even a tiny fraction of your friend s electrons4 . What is the end between wattage and voltage related to appliances you use at home ? Voltage is a measure both of electric potential drop difference and of the electromotive force produced by a potential difference . Home power lin es supply both cx to 120 volts (for ordinary use ) or 220 to 240 volts (for much(prenominal) appliances as electric ranges and clothes driers . On the other hand , watt is a measure of electric power . clear-cut bulbs and appliances are usually marked with the number of watts they require . The regulation 115-volt , 15 ampere household circuit can safely clench electrical devices drawing a watts5 . What is the difference between AM and FM radio waves ? Why do they bat the commission they doIn AM , the frequency of the...If you want to get a full(a) essay, order it on our website: OrderEssay.net

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