D 9 mph
Because it took her 10 minutes per mile
Answer:
B = 4.51×10⁻⁵ T
Explanation:
Given that,
The average magnetic field strength of the Earth is 0.0000451 T.
We need to write the value in the form of scientific notation. Any number in scientific notation is written as follows :
N=a×bⁿ
Where
n is any integer and a is a real no
So,
0.0000451 = 4.51×10⁻⁵ T
So, the required answer is equal to 4.51×10⁻⁵ T.
Next to south america plate and cocos plate
Hope this helps :)
Answer:
The force needed is the weight of the rock minus the buoyant force.
Explanation:
(a) The expression for the speed of the larger piece is .
(b) The numeric value for the speed of the larger piece is 10.84 m/s.
(c) The direction of the larger piece is 45⁰ with respect to y - axis.
<h3>Expression for the speed of the larger piece</h3>
Apply the principle of conservation of linear momentum;
m₁v₁ + m₂v₂ + m₃v₃ = 0
where;
- m₁ is mass of first piece
- m₂ is mass of second piece
- m₃ is mass of third piece = three times the mass of other piece = 3m
mv.i + mv.j + (3m)v₃ = 0
(3m)v₃ = -mv.i - mv.j
3v₃ = - v.i - v.j
<h3>Numeric value for the speed of the larger piece</h3>
<h3>Direction of the larger piece</h3>
tan θ = vj/vi
tan θ = 1/1
tan θ = 1
θ = arc tan(1)
θ = 45⁰
Learn more about linear momentum here: brainly.com/question/7538238
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