Answer:
Explanation:
The linear momentum during this collision must be conserved, which means that momentum before and after the collision must be the same.
We have a big defensive lineman of mass and velocity going in what we will call the positive direction, and a wide receiver of mass and velocity which we don't know. Since the collision is head on, momentum before the collision will be
After the collision, the receiver drops the lineman in his tracks, which means they come to a stop, so the momentum is null, and since this momentum must be equal to the one before the collision we have:
Which means:
So for we have:
where the negative sign indicates its opposite to our positive direction (of the big defensive lineman).
Answer:
390000
Explanation:
The momentum is huge. You wouldn't want this thing to hit you.
Momentum = m*v
m = 13000 kg
v = 30 m/s
Momentum = 13000 * 30
Momentum = 390000 kg m/s
Answer:
The equation to finding acceleration:
F/m=a
F= 20N
m= 4 kg
A= 20/4
A=5
<u>Acceleration= 5 m/s^2</u>
There are 2 atoms of nitrogen in this chemical formula
We know this because outside the bracket, there is a 2 which means everything inside the bracket is multiplied by that 2, meaning there will be 2 atoms of nitrogen and 6 atoms of oxygen.. And 1 atom of nickel as nickel isn't included inside the brackets
Answer:
3.) scientific field that uses technology to purposefully change living things
Explanation:
Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments. One of the most important branch of science is bioengineering. Biotechnology can be defined as a high-tech process which avail scientists the opportunity or ability to modify, remove, replace and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants etc in order to correct a genetic disorder and to improve on their physical and chemical conditions.
For example, selective breeding also referred to as artificial selection is being used to create plants that are more resistant to certain biological diseases. Thus, this is an example of an organism being changed through technological methods commonly known as biotechnology.
Hence, the phrase which best defines biotechnology is that, it is the scientific field that uses technology to purposefully change living things.