Answer:
density is the quantity per a unit volume, unit area or unit length.
Explanation:
Answer:
acceleration, a = 9.8 m/s²
Explanation:
'A ball is dropped from the top of a building' indicates that the initial velocity of the ball is zero.
u = 0 m/s
After 2 seconds, velocity of the ball is 19.6 m/s.
t = 2s, v = 19.6 m/s
Using
v = u + at
19.6 = 0 + 2a
a = 9.8 m/s²
Answer: A person can weigh differently at various place on Earth because of the fluctuations in Earth's gravity, according to a new high-resolution map. ... Earth's gravity is weaker at the equator due to centrifugal forces produced by the planet's rotation
Explanation:
Where are the questions so that I can deliver a more accurate answer.
Answer: False
Explanation:
HR diagram or Hertzsprung-Russell Diagram shows the relation between the luminosity, spectral class, effective temperature , different stages of star in its life and absolute magnitude.
Absolute magnitude is the apparent magnitude of star when star is at a distance of 10 pc. Thus, the given statement is false. The HR diagram displays the absolute magnitude of stars not the apparent magnitude of stars.
