I would help but don’t speak that sorry
Jack Plane is designed to take off heavy shavings and squares up rough timber to correct size and quickly removes waste wood.
Answer:
a) reduces the need to determine complicated flow properties.
b) The error decreases with the change in the area.
Explanation:
a) The mechanical properties of a fluid can sometimes be complicated. This results in an a need to calculate all the forces acting on the surface of the fluid particle. This then introduces the concept of the resolving the various forces. To reduce the error, we use the control volume. The Reynolds Transport Theorem states that the rate of change of an extensive property N, for a system is equal to the time rate of change of N in the control volume and the net rate of flux of the property N through the control surface.
b) By making the assumptions, it decreases the likelihood of errors occurring in the equation.
Glucose can be broken down to two 3-carbon compound called pyruvate and related energy called ATP
Answer:
b.) The car travels around a circular track at 30 m/s
Explanation:
To find - In which situation is the speed of the car constant while its velocity is changing?
a.) The car travels down a straight track at 30 m/sec
b.) The car travels around a circular track at 30 m/s
c.) The car begins from rest and accelerates to 20 m/s
d.) The car begins traveling at 30 m/s and decreases to 15 m/s
Proof -
We know that,
Speed is distance covered in a particular time
Velocity is distance covered by body in particular time in defined direction.
Now,
In a.)
Speed and direction is not changing.
So, Option a) is wrong.
In c.) and d.)
There exists a positive and negative acceleration.
Even If direction is constant, but the magnitude of speed is changing here, So, Option c) and d) are wrong.
Now,
In b.)
We can see that,
Due to circular motion, the speed of the car is constant at 30 m/s
But Due to circular motion, direction is changing continuously.
So, here speed is constant while its velocity is changing.
∴
The correct option is - b.) The car travels around a circular track at 30 m/s
