Answer:
51.25 mph
Explanation:
Total distance= 100 miles + 30 miles + 75 miles=205 miles
Total time=2 hours+1 hour+1 hour= 4 hours
Average speed,
Answer:
.25 m/s
Explanation:
We shall use the law of conservation of momentum . We do not use law of conservation of mechanical energy because in such cases there is loss of energy.
Momentum = mass x velocity
Initial momentum of arrow and block
= .15 x 30 +0 = 4.5 J
If final velocity of block be V
Total final momentum of both arrow and block
= .15 x 25 + 3 V
= 3.75 +3V
So
3.75 + 3 V = 4.5
V = .25 m/s
Answer:
Yes, it can can be completed adiabatically
Explanation:
To solve the problem we will resort to the theory of thermodynamics,
It is necessary to develop this problem to resort to the A-11E tables in English Units for R134a (since the problem requires it, if it were SI just to change to that table)
State 1 indicates that the refrigerant is at 60 ° F,
In the first table (attached image of the value taken) the value of the entropy is
For State 2 the refrigerant is at 50% quality and at a pressure of
In table 2 of the refrigerant (for the pressure values) we perform the reading and we have to
We know that,
The change in enthalpy would be given by
<em>The change in enthalpy is positive, so the process can be completed adiabatically</em>
Competition can result in territory obtained by one kind of birds, causing the other birds to find somewhere else. There can also be competition in food where one type of bird takes over resulting in other birds finding another habitat leading to a decrease and limitation in the size of a bird population.
Answer:
8m/s^2
Explanation:
<em>Acceleration</em><em>=</em><em>initial </em><em>velocity</em><em>-final </em><em>velocity</em><em>/</em><em>time</em>
<em>initial</em><em> </em><em>velocity(</em><em>u)</em><em> </em><em>is </em><em>3</em><em>2</em><em> </em><em>final </em><em>velocity</em><em> (</em><em>v)</em><em> </em><em>is </em><em>9</em><em>6</em>
<em>therefore</em>
<em>a=</em><em>9</em><em>6</em><em>-</em><em>3</em><em>2</em><em>/</em><em>8</em>
<em>a=</em><em>8</em><em>m</em><em>/</em><em>s </em><em>squared</em>
<em>hope </em><em>it </em><em>helps</em>