The answer is : B. allow for bonding metals to be stable. Metals, nonmetals all bond to be stable. Metallic bonding is the force of attraction between valence electrons and the metal ions.The electrons and the positive ions in the metal have a strong attractive force between them.
Complete question is: While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 60-kg person develops a power of 70 W during a race, how fast is the person running? (Assume a running step is 1.5 m long).
Answer: The person running at a speed of 2.91 m/s.
Explanation:
Given: Mass of runner = 60 kg
Runner dissipates = 0.6 J/kg per step
Average power = 70 W
1 step = 1.50 m
Energy dissipated by the runner is as follows.
Formula used to calculate the value of one step 'S' is as follows.
It is known that average velocity is equal to the total distance divided by time interval.
So, total distance for the given situation is as follows.
Hence, speed of the person is calculated as follows.
Thus, we can conclude that the person running at a speed of 2.91 m/s.
Answer:
Situation 2, 4, 5
Since there are five situations I just numbered them 1-5
Humanism looks at the goods in only humans. Humanism can influence a person's life today because their not only worried about themselves, but other humans and believe in other humans rights and "beings." Individualism, people look at only themselves as relevant and that's all that they care. It can influence a person's life today because it could possibly help with people's self-esteem, how they feel, & carry themselves.
To develop this problem it is necessary to apply the concept related to the speed of sound waves in fluids.
By definition we know that the speed would be given by
Bulk modulus
Density of air
From the expression shown above we can realize that the speed of sound is <em>inversely proportional</em> to the fluid in which it is found, in this case the air. When the density increases, the speed of sound decreases and vice versa.
According to the statement then, if the density of the air decreases due to an increase in temperature, we can conclude that the speed of sound increases when the temperature increases. <u>They are directly proportional.</u>