Answer:
Explanation:
Properties of Fluid at
Drag force
drag force is given by
we know average heat transfer coefficient is
Surface Temperature of metal Foil
is the surface temperature and T_{\infty }[/tex] is ambient temperature
The bearing shows the angle from north to the line (c), you want to see the angle inside the triangle so that will be 90-[bearing].
<span>a=42 (42 mph wind blowing north) </span>
<span>A= 90-74.9 </span>
<span>A= 15.1 degrees </span>
<span>Ground speed is the speed the plane is going including the wind. </span>
<span>ground speed = c </span>
<span>Airspeed = b </span>
<span>You have the angle, and you have the "Opposite" and want to find the "Hypotenuse". </span>
<span>SOH CAH TOA </span>
<span>Sin x = Opp/Hypot </span>
<span>Sin(15.1) = 42/c </span>
<span>c = 42/Sin(15.1) </span>
<span>c = 161.53 </span>
<span>Ground speed of the plane is 161.53 mph </span>
<span>Airspeed = b </span>
<span>Tan x = Opp/Adj </span>
<span>Tan (15.1) = 42/b </span>
<span>b = 42/Tan(15.1) </span>
<span>b = 161.53 </span>
<span>Airspeed = 161.53 mph </span>
<span>(so the answer is ground speed of 161.53mph)</span>
A. logic, would be your answer i believe!
Let the initial velocity be u = 23 m/s
Let the final velocity be v.
Vehicle stops finally, therefore v = 0 m/s
Here during the braking, vehicle decelerates with constant acceleration, thus the change in velocity is linear from initial velocity to final velocity.
for the Given condition:
Write the expression for the average speed
Substitute the values in the above expression.
Hence, the average speed during braking is 11.5 m/s
Answer:
Explanation:
When the rock is immersed in unknown liquid the forces that act on it are shown as under
1) Tension T by the string
2) Weight W of the rock
3) Force of buoyancy due to displaced liquid B
For equilibrium we have
=
When the rock is suspended in air for equilibrium we have
When the rock is suspended in water for equilibrium we have
+ =
Using the given values of tension and solving α,β,γ simultaneously for we get
Solving for density of liquid we get