Which evidence did Wegener use to develop the theory of continental drift?
1 answer:
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Answer:
A. 181.24 N
Explanation:
The magnitude of hte electrostatic force between two charged objects is given by the equation
where
k is the Coulomb's constant
q1, q2 are the magnitudes of the two charges
r is the separation between the charges
In this problem, we have:
is the magnitude of the 1st charge
is the magnitude of the 2nd charge
r = 2.5 cm = 0.025 m is the separation between the charges
Therefore, the magnitude of the electric force is:
So, the closest answer is
A) 181.24 N
Answer:
1.07 x 10⁻⁸N
Explanation:
Given parameters:
Mass 1 = 200kg
Mass 2 = 500kg
Distance of separation = 25m
Unknown:
Gravitational attraction between the two bodies = ?
Solution:
To solve this problem, we use the equation of the universal gravitation;
F =
G is the universal gravitation constant = 6.67 x 10⁻¹¹Nm²kg⁻²
r is the distance
Now insert the parameters and solve;
F = = 1.07 x 10⁻⁸N
Answer:
Image distance of the bug is - 0.4 m
Magnification is 5 times
Image is real and inverted
Solution:
As per the question:
The focal length of the lens, f = 0.1 m
Distance of the bud from the lens, v = 0.08 m
Now,
Using the lens maker formula:
where
v' = distance of the bug's image from the lens
Now,
v' = - 0.4 m
Now,
Magnification of the bug's image is given by:
m =
m =
Since, negative sign shows that inverted image is formed and positive value of magnification shows that real image is formed.