Where is the newest material in the Earth's crust found?

What will be an ideal response?


At the mid-ocean ridges, where plate tectonics constantly extrudes new lava.

Physics & Space Science

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A 500-W device is connected to a 120-V ac power source. What is the peak voltage across this device?

A) 4.2 V B) 5.9 V C) 120 V D) 150 A E) 170 V

Physics & Space Science

A point charge of 3.00 ?C is located on the y-axis at y = 4.0 m, another point charge of 6.0 ?C is located on the x-axis at x = 5.0 m, and a third charge of 7.2 ?C is located at (5.0 m, 4.0 m). What is the magnitude of the force on the 7.2 ?C charge?

A.
B.
C.
D.
E.

Physics & Space Science

In science, an unexpected change in a series of measurements is referred to as

A) a deviation B) bias C) an error D) an uncertainty

Physics & Space Science

A sharp knife can more easily cut objects than can a dull knife because

A. sharp knives have edges that can fit between the molecules of the object. B. a greater force can be applied with a sharp knife. C. dull knives cannot apply large forces. D. a greater pressure can be applied with a sharp knife.

Physics & Space Science