I believe the answer is true
Answer:
71 cm
Explanation:
Every 100 mm is equal to 10 cm. Hope this helps!
Answer:
10.65°
Explanation:
To calculate the initial Mach Number
Now, to calculate the angle turned by the wall; we have the following expression.
where:
= the angle between the initial flow direction = 40°
K is the ratio of specific heats o fair = 1.4
Answer:
The value of change in internal l energy of the gas = 1850 J
Explanation:
Work done on the gas (W) = - 1850 J
Negative sign is due to work done on the system.
From the first law we know that Q = Δ U + W ------------- (1)
Where Q = Heat transfer to the gas
Δ U = Change in internal energy of the gas
W = work done on the gas
Since it is adiabatic compression of the gas so heat transfer to the gas is zero.
⇒ Q = 0
So from equation (1)
⇒ Δ U = - W ----------------- (2)
⇒ W = - 1850 J (Given)
⇒ Δ U = - (- 1850)
⇒ Δ U = + 1850 J
This is the value of change in internal energy of the gas.
Answer:
Explanation:
Given
Diameter of CD
radius
mass of CD
Tangential velocity
music detected at
Moment of Inertia of disc
Work done is equal to change in kinetic Energy of CD
where angular velocity