work done =force /area
=500/50
power =work done * time taken
Answer: 7.25 * 10^5
Explanation:
1. The equation simplifies to (7*10 + 2.5) 10000.
2. Simplify in the parenthesis. 72.5 * 10000.
3. In scientific notation, the answer is 7.25* 10^5.
Answer:
boron
aluminum
gallium
indium
thallium
Explanation:
Any of these could work. Nitrogen has 5 valence electrons so you just needed to pick an element that has 3 valence electrons that nitrogen could borrow. This periodic table shows valence electron counts:
Answer:
a
The velocity is 
b
The diameter is 
Explanation:
The diagram of the set up is shown on the first uploaded image
From the question we are told that
The height of the water tank is 
The position of the hole
below water level
The rate of water flow 
According to Bernoulli's theorem position of the hole
Where u is the initial speed the water through the hole = 0 m/s
is the atmospheric pressure

Substituting value


The Volumetric flow rate is mathematically represented as

Making A the subject

substituting value


Area is mathematically represented as

making d the subject

Substituting values


Speed = (distance covered) / (time to cover the distance)
= (6.4 meters) / (4 minutes)
= (6.4/4) (meter/minute) = 1.6 meter per minute .