If a kestrel eats a mouse that eats grass the kestrel is a
2 answers:
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(a) The momentum of a moving object is given by:
where m is the mass of the object and v is its speed. In this problem, the mass of the elephant is and its speed is
, therefore its momentum is
(b) We can use the same formula to calculate the momentum of the tranquilizer dart, whose mass is and whose speed is
:
we see that the elephant's momentum is much larger than the momentum of the dart.
(c) Again, using the same formula, the mass of the hunter is , his speed is
, therefore his momentum is
Answer:
3.7 atm i.e., pressure doubles
Explanation:
P₁ = Initial pressure = 1.85 atm
P₂ = Final pressure
V₁ = Initial volume = 12.5 L
V₂ = Final volume = 0.5V₁
T = Temperature is constant
From ideal gas law
P₁V₁ = P₂V₂
∴ Final pressure is 3.7 atm i.e., pressure doubles