Each point in the chain supports the weight of all the mass below it.
At the bottom end of the chain, the weight is (175 x 9.8) = 1,715 N .
At the top of the chain, the weight is (175 + 12) x (9.8) = 1,833 N .
The tension in the chain varies linearly from 1,715N at the bottom
to 1,833N at the top.
In the owen, heat absorbed by two metals are different due to their specific heat(c -- Q=mct). the one that absorbed more heat, should cool down slower if their shapes are the same.
outside the owen, heat transferred to the air with related equation -- heat conductivity q=kAt/d. with the same amount of heat, block with better conductivity -- larger surface area(A), more thermal conductivity(k) and thiner(d), should have lower the temperature.
----- above is for you to understand where are the factors came from. not to answer as such.
in summary related factors are specific heat, thermal conductivity, surface area and thickness of the material. use this to explain such as 'one has larger surface area so it cool down faster'
Answer:
0.66 m/s²
Explanation:
The following data were obtained from the question:
Initial velocity (u) = 0
Final velocity (v) = 5.4 m/s
Time (t) = 8.2 secs
Acceleration (a) =....?
The acceleration of the dog can be obtained as follow:
v = u + at
5.4 = 0 + a × 8.2
5.4 = 8.2a
Divide both side 8.2
a = 5.4/8.2
a = 0.66 m/s²
Therefore, the acceleration of the dog is 0.66 m/s².
Answer:
<h2>Parasitism.</h2>
Explanation:
Parasitism, in biology, is defined as a relationship between different species, formed by a parasite and a host. So, basically the parasite lives in or on the host, causing it harm. <em>Parasites can be describe as predators that eat less than one prey unit</em>, that is, they feed them selves slowly, they don't kill the prey instantly as actual predators do.
So, in this case, we are talking about leeches, which are defined as parasitic worms which lives in freshwater environments. They feed themselves by sucking blood from the host.
<em>Therefore, the relation between these two species is Parasitism.</em>
