Answer: The first one is A and C
Explanation:
Answer:
speed in still air is 42 mph
Explanation:
given data
tail wind speed = 14 mph
time t1 = 5 min = 5/60 hr = 1/12 hr
return time t2 = 10 min = 10 /60 hr = 1/6 hr
to find out
how fast they fly
solution
we consider here speed in still air is x
then
speed in wind will be = x + 14
and against wind speed = x - 14
so
distance = speed × time .................1
so in wind distance = ( x + 14 ) × 1/12 ...................2
and against wind distance = ( x - 14 ) × 1/6 ..................3
so from equation 2 and 3
( x + 14 ) × 1/12 = ( x - 14 ) × 1/6
x = 42
so speed in still air is 42 mph
Answer:
120V
Explanation:
Given parameters:
Current = 6A
Resistance = 20Ω
Unknown:
Voltage = ?
Solution:
According to ohms law;
V = IR
Where V is the voltage
I is the current
R is the resistance
Now, insert the parameters and solve;
V = 6 x 20 = 120V
Answer:
samples are combined, thoroughly homogenized, and treated as a single sample. Composite sampling can improve spatial or temporal coverage of an area without increasing sample number. Appropriateness of composite sampling is dependent upon the sampling objectives and the site characteristics.
Explanation:
Answer:
dairy products containing casein
