Control rods<span> are </span>rods<span>, plates, or tubes containing a neutron absorbing material (material with high absorbtion cross-section for thermal neutron) such as boron, hafnium, cadmium, etc., used to </span>control<span> the power of a nuclear reactor.
so the statement that describe a control rod is:
</span><span>Control rods are lowered into the reactor to slow down the reaction by absorbing neutrons.</span>
Answer:
This question is an example of Boyle's gas law which states that the pressure of a given mass of a gas is inversely proportional to its volume at a constant temperature. The formula for this gas law is:
P1·V1 = P2·V2
P1 = initial pressure = 1.7 atm
V1 = initial volume = 4.25 L
P2 = final pressure = 2.4 atm
V2 = final volume = ?
Rearrange the formula to isolate V2. Substitute the known data and solve.
V2 = P1·V1/P2
V2 = 1.7 atm·4.25 L/2.4 atm = 3.0 L to two significant figures
The new volume will be ~3.0 L.
Explanation:
Answer:
28.3 kg
Explanation:
Assuming the ground is level, the normal force equals the weight.
N = mg
277 N = m × 9.8 m/s²
m = 28.3 kg
D. Adding another base pair will re-arrange your DNA sequences and cause an insertion mutation. This will make your codons group of differently, and possibly give you a BAD mutation. However, sometimes the codons still make the same proteins as its supposed to, the mutation will NOT affect you.
Example:
THE BIG FAT CAT ATE THE RAT
Now, if i were to add a letter (X) to this and make the letters group up in three aka the codons:
THE XBI GFA TCA TAT ETH ERA T
As you can you can see, adding a base pair in a DNA insertion will usually have a negative effect, specifically a insertion mutation.
Answer:
(d) Force of friction acts in solids, liquids and gases and opposes the motion with respect to each other.
