Answer:
432 units
Explanation:
Let the charges be q and Q separated by a distance r. The electrostatic force , F = kqQ/r² = 72 units. If q = 2q and Q = 3Q, then the new electrostatic force is
F = k × 2q × 3Q/r² = 6kqQ/r² = 6 × 72 = 432 units
one of several competing scientific models that all seem equally successful in explaining the nature of life on Earth
Explanation:
- The theory of evolution is one of the several competing scientific models that all seems to successfully explain the nature of life on earth.
- A theory is usually drawn from careful observation of scientific investigation.
- Theories generally provides explanation into a phenomenon that occurs in nature.
- They are products of careful scientific observations and experiments.
- The theory of evolution is but one of them.
Learn more:
Experiments brainly.com/question/5096428
#learnwithBrainly
Answer:
C. 5.35 × 10^-5
Explanation:
5.35 × 0.00001 = 0.0000535
Hope this helped!
Answer:
The drag force is 
Explanation:
Given that,
Diameter = 60 cm
Length = 1 m
Air speed = 4.5 m/s
Temperature = 50°C
We need to calculate the Reynolds number
Using formula of Reynolds number

Put the value into the formula


We need to calculate the drag coefficient
Using formula of drag coefficient

Put the value into the formula


We need to calculate the drag force
Using formula of drag force

Put the value into the formula



Hence, The drag force is 