Answer:
B
Explanation:
I did this and got it right
Answer:
42 kg.m/s if the two are moving in the same direction
Explanation:
momentum formula: p=mv
22kg.m/s+20kg.m/s= p
42kg.m/s=p
the momentum of both objects=42 kg.m/s
Answer:
Calcium
Explanation:
Parathyroid hormone (PTH) is a hormone that is secreted by the parathyroid gland. It is the major regulator of the plasma concentration of calcium ions. It regulates calcium ions in the kidney, intestine and bones.
In the kidney, is involved in the re-absorption of calcium in distal ducts and the renal collecting duct, it is also involved in activating the conversion of 25-hydroxy vitamin D into 1,25-dihydroxy vitamin D (calcitriol).
In the intestine, PTH is involved in the absorption of calcium, by increasing vitamin D production.
In the bone, it helps in regulating calcium levels; when serum calcium level is low, PTH stimulates the activity of the osteoclast, to produce more calcium.
Answer: See explanation
Explanation:
1. The factors that should be considered when evaluating the costs and benefits of a new innovative process include the cost to build, the effort and time to implement and the maintenance and recurring costs. Therefore, the correct options is D. I, II and III.
2. The factors that will contribute to a measurement of environmental quality is the Salinity levels. Therefore, the correct option is C.
3. If all the other costs and benefits are equal, then the product that will be recommended will be option A "Product 1 because it requires less monitoring, reducing the overall cost"
Since Product 1 requires monitoring once in three months while Product 2 requires monitoring once every week, then we can deduce that product 2 will increase the overall cost.
4. The option that describes the relationship between human population size and resource use is option A "Countries with high populations are likely to use more resources".
When there's an increase in population, the people will make use of more resources when compared to an area with lesser population. Therefore, the correct option is A
