If a horse has a kinetic energy of 29,400 Joules if the horse has a mass of 300 kilograms, then the speed of the horse would be 14 m / s.
Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy.
The expression for total mechanical energy is as follows
ME = PE + KE
As given in the problem a horse has a kinetic energy of 29,400 j if the horse has a mass of 300 kg,
The kinetic energy of the horse = 0.5 × 300 × v²
29400 = 150 × v²
v = 14 m / s
Thus , If a horse has a kinetic energy of 29,400 Joules if the horse has a mass of 300 kilograms, then the speed of the horse would be 14 m / s.
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B. vaporization.
C. deposition.
D. sublimation.
Answer: Properties and States of Matter Practice
1. Which of the following are pure substances? Compounds
2. A substance that cannot be broken into similar substances is called a(n)... Element
3. When a physical change in a sample occurs, which of the following does NOT change? Composition
4. Which of the following will cause a decrease in gas pressure in a closed container? Lowering the temperature
5. The heat of fusion for water is the amount of energy needed for water to... Melt
6. The phase change in which a substance changes from a gas directly to a solid is... Deposition
7. Which of the following phase changes is an exothermic change? sublimation
8. Which of the following has the highest viscosity? Corn Syrup
9. In which of the substances in the figure below are the forces of attraction among the particles so weak that they can be ignored under ordinary conditions? It is the one where the particles are more apart.
Explanation:
B. The General Gas Law
C. Boyle's Law
D. The Law of Cubic Expansion
Answer:
(C) Boyle's law
Explanation:
According to Boyle's law when we kept the temperature as constant and is we decrease the pressure of the gas then the volume of the gas is increases it means that at pressure and volume are inversely proportional to each other when we take temperature as constant.
So for the given statement Boyle's law will be correct option
So option (c) will be correct option
b. gymnastics
c. tennis
d. wrestling
Answer:
B
Explanation:
The answer is b. gymnastics
Temperate
Maritime
Tropical
Answer:
polar
Explanation:
they said it was extreme so atleast it would be polar