Answer:
The answer to your question is: Chemical change
Explanation:
Chemical Change is a change where substances change their properties because new substances are obtain. This is the right answer.
Compressibility
is a property in which a substance is compressed but it continous being the being so this answer is wrong.
Malleability is a property in whcih substances are flattened into thin sheets but they don't change their properties. This answer is wrong.
Physical Change is a change in which a substance changes its physical state but the properties are the same than the original substance, this answer is wrong.
The cart's force is only in reaction to the horse's force so it does not define direction of movement.
The solution is:tan(θ) = opp / adj tan(θ) = y/x xtan(θ) = y
Find x:
x = y/tan(θ)
So x = 3/tan(π/6)
Perform implicit differentiation to get the equation:
dx/dt * tan(θ) + x * sec²(θ) * dθ/dt = dy/dt
Since altitude remains the same, dy/dt = 0. Now...
dx/dt * tan(π/6) + 3/tan(π/6) * sec²(π/4) * -π/4 = 0
changing the equation, will give us:
dx/dt = [3/tan(π/6) * sec²(π/6) * π/4} / tan(π/6) ≈ 12.83 km/min
Answer:
10.2 atm
Explanation:
Use ideal gas law:
PV = nRT
Initial number of moles is:
(2.20 atm) (0.859 L) = n (0.0821 atm L / mol / K) (565 K)
n = 0.0407 mol
At the new volume and temperature, the pressure is:
P (0.268 L) = (0.0407 mol) (0.0821 atm L / mol / K) (815 K)
P = 10.2 atm
