Answer: C water
Explanation: The explanati is not hard cause the main elements of earth is fire ice water earth
Answer:
N
Explanation:
= initial velocity of the bullet = 0 m/s
= final velocity of the bullet as it leaves = 443.4 m/s
= acceleration of the bullet
= length of the barrel of the rifle = 0.7 m
the kinematics equation we can use must include the variables in the above list, hence
ms⁻²
= mass of the bullet = 7.9 g = 0.0079 kg
Force exerted on the bullet is given as
N
Answer:
The initial speed of 2 kg cart is 0.4 m/s.
Explanation:
Given that,
Mass of the cart 1,
Mass of cart 2,
Initial speed of car 2, (it is at rest)
After the collision,
Speed of cart 2, (right direction)
Speed of cart 1, (right)
We need to find the initial speed of 2 kg cart. It is a case of conservation of linear momentum. It is given by :
is the initial speed of 2 kg cart.
So, the initial speed of 2 kg cart is 0.4 m/s. Hence, this is the required solution.
<h2>Energy remains constant </h2>
Explanation:
Thermodynamic Laws -
- The primary law, otherwise called the Law of Conservation of Energy, expresses that energy remains constant in the overall reaction, it is not created or destroyed.
- The second law of thermodynamics expresses that the entropy increases. after the completion of the reaction of any isolated system
- The third law of thermodynamics expresses that as the temperature reaches towards an absolute zero point the entropy of a system becomes constant.
Standard Electronic potential -
- The standard reduction potential may be defined as the tendency of a chemical species or the reactants to get into its reduced form after the overall reaction.
- It is estimated at volts.
- The more is the positive potential the more is the reduction of the chemical species
Aerobic grow is much more efficient at making ATP because of the presence of oxygen the cycles in the respiration are carried out at an efficient rate which forces the cell to undergo a much large amount of ATP production.