Answer:
unit =1.83
Explanation:
The cooling load is due to people, lights, and heat transfer through the walls and the windows so. The total cooling load of the room is determined from
(Equation 1) Q cooling = Q lights + Q people + Q heat gain
there fore
Q cooling = 10 x 100 W = 1 KW
Q people = 40 x 360 KJ/h = 4 KW
Q heat gain = 15.000 kJ/h = 4.17 KW
we replace the values in Equation 1
Q cooling = Q lights + Q people + Q heat gain
Q cooling = 1 + 4 +4.17
Q cooling = 9.17 KW
Thus the number of air — conditioning units required is
9.17 KW /5 KW unit =1.83
A non-contact force is a force which acts on an object without coming physically in contact with it. In contrast a contact force is a force which acts on an object coming physically in contact with it. ...
Answer:
= 10.3 m/s
Explanation:
We can solve this exercise using the conservation of the moment; the system is formed by the knife and the target, with an isolated system the moment is conserved during the collision
Knife mass m = 22.5 g and its velocity v₁₀ = 39 m / s, the mass of white is M = 300 gr and its velocity is v₂₀ = -2.15 m / s
Before the crash
p₀ = m v₁₀ + M v₂₀
After the crash
= m v₁ₐ + 0
p₀ =
m v₁₀ + M v₂₀ = m
= (m v₁₀ + M v₂₀) / m
Let's calculate
= (0.0225 39.0 + 0.300 (-2.15)) / 0.0225
= 10.3 m / s
Answer:
a wedge.
Explanation:
it moves when you apply force to one end of the wedge.
Answer:
Explanation:
Speed of the car is given as
here we know that
now we know that human body can sustain maximum acceleration of 30 g without any fatal
so here in order to find the stopping distance with survival condition we can say