The region between the separation streamline and the boundary surface of the solid body is known as
A. wake
B. drag
C. lift
D. boundary layer
Answer: Option A
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A. 22.5 m/sec.
B. 33 m/sec.
C. 40 m/sec.
D. 90 m/sec.
A. the weight of the body
B. more than the weight of the body
C. less than the weight of the body
D. weight of the fluid displaced by the body
The difference of pressure between the inside and outside of a liquid drop is
A. $${\text{p}} = {\text{T}} \times {\text{r}}$$
B. $${\text{p}} = \frac{{\text{T}}}{{\text{r}}}$$
C. $${\text{p}} = \frac{{\text{T}}}{{2{\text{r}}}}$$
D. $${\text{p}} = \frac{{2{\text{T}}}}{{\text{r}}}$$
A. cannot be subjected to shear forces
B. always expands until it fills any container
C. has the same shear stress.at a point regardless of its motion
D. cannot remain at rest under action of any shear force
Wake is correct option as it is separation of stream line and boundary surface of solid body, whereas Drag is the region in the direction of upstream velocity and lift is the region normal to the direction of upstream velocity
Drag is a force .so correct option is is A
Drag is a force ....so right option is A
I think drag should be answered
How plz. Any one Give explanation....
How?