a)
The acceleration due to gravity at a certain location on Earth is given by
where
G is the gravitational constant
M is the Earth's mass
R is the Earth's radius
h is the altitude above the Earth's surface
At the top of Mt. Everest,
R = 6380 km =
With
(1)
At the Earth's surface,
R = 6380 km =
h = 0
g = ?
So
(2)
By doing the ratio (2)/(1), we find an expression for g in terms of g':
And therefore,
b) 519.3 N
The weight of an object near the Earth's surface is given by
where
m is the mass of the object
g is the acceleration of gravity at the object's location
In this problem,
m = 50 kg is the mass of the object
g' = 9.77 m/s^2 is the acceleration of gravity on top of Mt Everest
Susbtituting,
Answer:
the rocks are away from cracks in the crust
Explanation:
The new crust is pushed away from the Ocean Ridge in both directions as newer crust is formed. This is called sea floor spreading. The crust that makes up the sea floor starts to have time to accumulate a layer of sediments as it gets older and moves away from the Ocean Ridge.
The question is asking to calculate the mass of the solid piece if it has a volume of 640cm^3 and a density of 755 kglm, base on that, the answer would be that the mass is 1.18 kg. I hope you are satisfied with my answer and feel free to ask for more
Resistance = (voltage) / (current)
Resistance = (12v) / (0.33 A)
Resistance = (12/0.33) ohms
<em>Resistance = 36.4 ohms</em>