Answer:350.92 KJ/kg
Explanation:
Given the process is reversible adiabatic i.e it is isentropic
From steam table
For isentropic process
at
Therefore Work output of the turbine per unit mass of steam is =
=3317.03-2966.11
=350.92 KJ/kg
Answer:
C) Acceleration is the change in velocity so the car is experiencing a change in velocity and it is accelerating.
Explanation:
- Velocity is a vector quantity, which consists of a magnitude (the speed) and a direction. In the case of the circular motion, as in this problem, the speed is constant (45 m/h), but the direction is constantly changing, so the velocity is changing as well.
- Acceleration is also a vector quantity, whose magnitude is equal to the rate of change of the velocity, and the direction is given by the change in direction of the velocity. Therefore, since the velocity is changing, the acceleration in this problem is changing as well.
I believe the answer is:
~D. Very dusty irregular galaxy.
Hope this helps!!!
Answer:
Explanation:
Given
-- radius of hydrogen atom
<em>See attachment</em>
Required
Determine the radius of magnesium atom (R)
From the attachment, the ratio of a hydrogen atom to a magnesium atom is:
Simplify
Represent the radius as ratio:
Substitute
Equate both ratios
Express as fraction
Cross Multiply
Hence, the radius of the magnesium atom is: