Answer:
Time taken to reach your destination will be 10hours
Explanation:
Recall the formula for Speed;
speed=Total distance/Total time taken
Speed=2km/h
Total distance=20km
Time taken=x
let x be the unknown time taken
Input each values into the formula;
2=20/x
Making x subject of the equation
x=20/2
x=10
Total time taken =10hours.
Answer:
mantle convection is the very slow creeping motion of earths solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface.
Answer:
57.17 Hz 114.34 Hz 285 Hz
Explanation:
The distance between the men and 1 speaker = 3.5 m
Distance between the men and second speaker = 10-3.5= 6.5 m
Here at this point there will be no sound so there will be destructive interference
Path difference
We know that for destructive interference
here v is the speed of sound in air
So for m =0
for m =1
for m=2
Answer:
The standard deviation of corrected pH is
5.64 , 1.32
Explanation:
To find the measurements pH given
μx = 4.60 , σx = 1.10
So using the measurement as a pH
μₐX + b = aμ X + b
μ1.2 x + 0.12
1.2 (4.60) + 0.12 = 5.64
σₐX +b = a σ X
σ 1.2 X + 0.12
1.2 (1.10) = 1.32