Every atom contains a .............. which is positively charged
1 answer:
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Answer:
.487 s⁻¹
Explanation:
Let damping constant be τ . The equation of decreasing amplitude can be written as
A = A₀
A / A₀ =
At t = 9.43 s , A / A₀ = .01
.01 =
ln.01 = - 9.43 τ
-4.6 = -9.43τ
τ = .487 s⁻¹
Answer:
Explanation:
It is given that Hair dryer , Toaster and coffeepot are working simultaneously with power 1200 W , 700 W and 800 W respectively.
So the total power of system is
it is given that they work properly until toast is on.
By switching on the toast, appliance stop working because it may cause the circuit to break to safeguard the circuit.
Circuit breaker frame are used in home to prevent the short circuit
To solve this problem we will apply the first law of thermodynamics and we will make a balance between the heat transferred, its internal energy and the total work. Recall that for gases the definition of work can be expressed in terms of its pressure and volume. Let's start
Here,
dU = Internal Energy
dW = Work
But internal energy is unchanged, then
Where
= Change in Volume
P = Pressure
Finally, the expression of the heat transferred can be expressed in terms of pressure and volume, so it would end up becoming
Replacing,
Therefore the correct answer is B.