Answer:
oxygen
Explanation:
its the only element needed
1. The particles keeps on moving (move faster) when a substances gains energy and changes state.
2. When water freezes it gives up some of the water's energy. This energy that is given up is the latent heat of freezing. When the water was freezing latent heat of freezing energy was being released. Heat energy was actually being released
3. In a stick of butter, the particles are locked together and are compact. In melted butter, the particles can slide past each other and are less compact.
4. 0 degrees Celsius.
5. Evaporation only happens at the surface while boiling happens all throughout.
A. The answer is C.
Explanation: it is the only logical answer that describes the difference between the living things.
The correct answer is memory cells.
Vaccination refers to the clinical use of immunization established to artificially assist the body in fighting against the disease. A vaccine against an infection is an amended kind of a natural immunogen that may be the component of the pathogen, a toxin, or even the whole pathogen.
A vaccine does not result in a disease, however, instigates the healthy host to fight against the epitopes of the amended immunogen and produce ample amount of memory cells (T and B cells).
Due to the production of the memory cells, when the body comes in contact with an antigen or immunogen again, then the memory cells generate antibodies quickly and kills the pathogen before it can impart its influence.
The answer is <span>0.5 m/s².</span>
The formula that will be used is
F = m · a
where
F - the force of the object,
m - the mass of the object,
a - the acceleration of the object.
It is given:
m = 1,200 kg
F = 600 N
a = ?
F = m · a
⇒ a = F ÷ m = 600 N ÷ 1,200 kg = 0.5 m/s²