Answer:
increased by 9 times
Explanation:
As the period of a simple pendulum is defined as the following formula
where L is the length of the pendulum and g is the constant gravitational acceleration. Since L is under a square root, if you want to triple the period of vibration, L must be increased by 9 times so that
Answer:
Explanation:
Energy falling on 1 m² surface of earth per second = 1050
Energy in one million years on 1 m²
= 1050 x 60 x 60 x 24 x 365 x 10⁶ = 3.311 x 10¹⁶ J
In order to calculate total energy coming out of the surface of the sun , we shall have to sum up this energy for the while spherical surface of imaginary sphere having radius equal to distance between sun and earth.
Area of this surface = 4π R² = 4 X 3.14 X (149.6 X 10⁹ )²
= 2.8 X 10²³ m²
So total energy coming out of the sun = 2.8 x 10²³ x 3.311 x 10¹⁶
= 9.271 x 10³⁹ J
From the formula
E = mc² { energy mass equivalence formula }
m = E / c² =
1.03 x 10²³ kg
mass of earth = 5.972 x 10²⁴
Answer in percentage of mass of earth
=
= 1.72 %
Answer:
Explanation:
The solution is shown in the picture attached. I hope it helps you. Thank you.
