To visit your favorite ice cream shop, you must travel 490 m west on Main Street and then 920 m south on Division Street. Suppos
1 answer:
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Answer:
The width of slide is 0.092 mm.
Explanation:
Given that,
Wave length = 680 nm
Distance between slit and screen D= 5.4 m
Distance of bright band 2y = 7.9 cm
We need to calculate the width of slide
Using formula of width
Where, d = width
D =Distance between slit and screen
y = Distance of bright band
Put the value into the formula
Hence, The width of slide is 0.092 mm.
Answer:
2805 °C
Explanation:
If the gas in the tank behaves as ideal gas at the start and end of the process. We can use the following equation:
The key issue is identify the quantities (P,T, V, n) in the initial and final state, particularly the quantities that change.
In the initial situation the gas have an initial volume , temperature
, and pressure
,.
And in the final situation the gas have different volume and temeperature
, the same pressure
,, and the same number of moles
,.
We can write the gas ideal equation for each state:
and
, as the pressure are equals in both states we can write
solving for
(*)
We know = 935 °C, and that the
(the complete volume of the tank) is the initial volume
plus the part initially without gas which has a volume twice the size of the initial volume (read in the statement: the other side has a volume twice the size of the part containing the gas). So the final volume
Replacing in (*)
To solve this problem we will apply the concept of rotational kinetic energy. Once this energy is found we will proceed to find the time from the definition of the power, which indicates the change of energy over time. Let's start with the kinetic energy of the rotating flywheel is
Here
I = moment of inertia
Angular velocity
Here we have that,
Replacing the value of the moment of inertia for this object we have,
The expression for average power is
Therefore the correct answer is 620s.