Answer:
0.4 hour or 24 minutes
Explanation:
Speed =displacement /time
25miles/hour=10/time
10/25=time
0.4hour=time
Answer:
Ac = 36320 m/s^2 = 3702 g
Explanation:
First let's find the linear velocity of the propeller tip.
The angular velocity is 1200 rev/min, which is 20 rev/s
One rev is 2*pi radians, so 20 rev/sec = 40*pi rad/s
To find linear velocity, we multiply the angular velocity by the radius, so:
V = 40*pi * 2.3 = 92*pi m/s
The centripetal acceleration is given by Ac = V^2/r, being r the radius. So:
Ac = (92*pi)^2/2.3 = 36320 m/s^2
If g is the gravity acceleration = 9.81 m/s^2, we can find Ac in multiples of g by dividing their values:
Ac = 36320/9.81 = 3702 g
Mass of the block = 2.0 kg
Value of gravity = 9.81 m/s^2
Distance upto which the mass is lifted = 15 meters
Time taken to lift the mass of the block = 6.0 seconds
Now we already know
Work Done = Mass * Gravity * Distance
= 2 * 9.81 * 15
= 294 Joules
Then
Power Output = Work Done/Time
= 294/6
= 49 Watts
So the power output of the electric motor is 49 watts.The correct option among all the options given in the question is option "4".
Answer:
Volume flow rate 
meter cube per second
Explanation:
As we know that the
Pressure at the two ends would be the same along with volume of flow.
i.e
and
Re arranging the file, we get -
The flow equation is
Substituting the value of 
in above equation, we get -
Substituting the given values in above equation we get
Volume flow rate
Answer:
C. balancing the amount of energy that is taken in with the amount of energy that is released by the body
Explanation:
im smart
