A baby lizard startles Steven Wade. The sweet little lizard accelerates from 2 m/s to 10 m/s in 4 seconds. The lizards average acceleration as he runs away from Steven will be :
<span>acceleration = 2 m/s/s</span>
<h2>Answer:</h2>
Entropy is the reason of worrying about world energy sources.
<h3>Explanation:</h3>
- Entropy is the measure of a system's thermal energy per unit temperature that is unavailable for doing useful work.
- The amount of entropy is also a measure of the molecular disorder, or randomness, of a system.
- For example , There are some reactions which are irreversible because some of the energy in the reaction is lost to environment instead of converting totally to the products.
- This lost of energy is entropy.
- Due to which the energy of universe is losing irreversibly.
- That's why we worry about world energy sources.
I think the correct answer would be old and metal poor stars are found in the galactic nucleus. This nucleus us a region in the center of a galaxy which contains a higher luminosity than other parts. It produces very high amounts of energy. Hope this helps.
Answer:
Explanation:
Gravitational law states that, the force of attraction or repulsion between two masses is directly proportional to the product of the two masses and inversely proportional to the square of their distance apart.
So,
Let the masses be M1 and M2,
F ∝ M1 × M2
Let the distance apart be R
F ∝ 1 / R²
Combining the two equation
F ∝ M1•M2 / R²
G is the constant of proportional and it is called gravitational constant
F = G•M1•M2 / R²
So, to increase the gravitational force, the masses to the object must be increased and the distance apart must be reduced.
So, option c is correct
C. Both objects have large masses and are close together.