Answer:
A hypothesis predicts the value of a dependent variable given an independent variable:
If a person weighs 50 kg (independent variable) the weight hypothesis predicts that W = 50 * 9.8 = 490 N (the dependent variable)
So those three should be present in an investigation
They bounce off just like sun rays when they heat the atmosphere they bounce off reflection
Answer:
675 Pa.
Explanation:
F = 5+2cos(15t) kN
Area (a) = 8*10-3 m2
Now at t =4 sec
F= 5+2cos(60)
= 5+2*0.5
= 6 kN
Now ,force efficiency is 90%.
Hence,the effectively transmitted force,
Fe = 0.90*6
= 5.4 kN
Hence,pressure is given as,
P = Fe/a
= 5.4*10^3/(8
*10^-3))
P = 675 Pa....answer
Frequency multiplied by the wavelength
6*2 = 12
The answer is; C
As can be observed in the diagram, the oceanic plate of the crust is being subducted by the continental plate. This is typical of a subduction zone where two tectonic plates, moving in opposite directions, collide. The heavier plate (usually the oceanic plate due to its ‘wetness’) sinks below the lighter plate (usually the continental plate). An example of a subduction zone is the famous ‘ring of fire’ region in the Pacific.
