Answer:
So -24.5 m merely means the depth of the base of the tower ie the ground from the top of the tower. So wrt the ground height of the tower = 24.5 m.
Explanation:
Answer:Alpha decay, type of radioactive disintegration in which some unstable atomic nuclei dissipate excess energy by spontaneously ejecting an alpha particle.
Explanation:
The type of eclipse in which one sees the sun in the form of a ring is ANNULAR SOLAR ECLIPSE.
Solar eclipse occurs when the moon casts a shadow on the earth.
There are three basic types of solar eclipse, these are total, partial and annular solar eclipse. The annular solar eclipse occurs when the moon covers the sun's center thereby leaving the sun visible outer edges to form a ring of fire around the moon.<span />
Answer:
Explanation:
The relation between time period of moon in the orbit around a planet can be given by the following relation .
T² = 4 π² R³ / GM
G is gravitational constant , M is mass of the planet , R is radius of the orbit and T is time period of the moon .
Substituting the values in the equation
(.3189 x 24 x 60 x 60 s)² = 4 x 3.14² x ( 9380 x 10³)³ / (6.67 x 10⁻¹¹ x M)
759.167 x 10⁶ = 8.25 x 10²⁰ x 39.43 / (6.67 x 10⁻¹¹ x M )
M = .06424 x 10²⁵
= 6.4 x 10²³ kg .
