<span>We can use a simple equation to find the time for the feather to fall to the surface.
y = (1/2) g t^2
y is the height
g is the acceleration due to gravity
t is the time
t^2 = 2y / g
t = sqrt{ 2y / g }
t = sqrt{ (2) (1.40 m) / (1.67 m/s^2) }
t = sqrt { 1.6766 s^2 }
t = 1.29 seconds
It takes 1.29 seconds for the feather to fall to the surface.</span>
Not sure but i will say D
The gas releases an amount of heat equal to -225 J
Explanation:
The change in internal energy of a diatomic gas is given by:
where
n is the number of moles
R is the gas constant
is the change in temperature
For this gas we have:
n = 0.235 mol
So, the change in internal energy of the gas is
Now we can use the 1st law of thermodynamics to find the heat absorbed/released by the gas:
where
Q is the heat absorbed by the gas
W is the work done by the gas
Here we have:
Solving for Q, we find:
Where the negative sign means the heat has been released by the gas.
Learn more about gases:
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Answer:
a) The magnitude of the magnetic field inside the toroid at the inner radius is
0.000447 T = 0.447 mT
b) The magnitude of the magnetic field inside the toroid at the outer radius is
0.000344 T = 0.344 mT
Explanation:
With a logical assumption that magnetic permeability of vacuum would be used,
the magnetic field at a distance r, from the centre of the loop is given as
B = μ₀I (N/2πr)
B = ?
μ₀ = (4π × 10⁻⁷) H/m
I = 0.739 A
N = 590 turns
For the inner radius,
r = 19.5 cm = 0.195 m
a) B = μ₀I (N/2πr)
B = (4π × 10⁻⁷ × 0.739 × 590) ÷ (2π × 0.195)
B = 0.0004471897 T = 0.000447 T = 0.447 mT
b) Magnetic field at the outer radius
r(outer) = r(inner) + length of the square
r(outer) = 19.5 cm + 5.83 cm = 25.33 cm = 0.2533 m
B = μ₀I (N/2πr)
B = (4π × 10⁻⁷ × 0.739 × 590) ÷ (2π × 0.2533)
B = 0.0003442637 T = 0.000344 T = 0.344 mT
Hope this Helps!!!
Answer:
A force is any interaction that, when unopposed, will change the motion of an object
Explanation: