Answer:
The efficiency of the hair dryer is 0.2 or 20%
Explanation:
The efficiency of a machine or any appliance is a measure of the useful work done by the machine when an effort is applied to the machine. The higher the efficiency of a machine, the more useful work the machine does.
Due to the economical and environmental impact of energy production, machines and appliances of high efficiency are being developed and recommended for domestic as well as industrial use nowadays.
In electrical appliances, energy is usually supplied by electrical power units. The higher the efficiency of an electrical appliance, the less power it consumes to do useful work. For a hair dryer which takes in 3000 J of energy per second and transfers 600 J of useful heat energy, its efficiency is calculated with formula below:
efficiency = useful energy / total energy input
Efficiency = 600 J / 3000 J = 0.2
Therefore, the efficiency of the hair dryer is 0.2 or 20%
In creature cells, if an answer that the cell is in has an equivalent measure of solute as within the cell does, the cell will continue as before size. On the off chance that there is more solute outside of the creature cell, the cell will recoil in light of the fact that the water will tail it out of the cell hyper tonic arrangement. On the off chance that there is less solute outside of the creature cell, the cell will develop in light of the fact that the water will take after the more prominent solute within the cell hypo tonic arrangement
Answer:
(i) Canonical prophets are prophets whose oracles are recorded under their names.
(ii) Non-canonical prophets whose oracles have been compiled by other authors for example, Elisha, Elijah and Nathan.
(iii) Cultic prophets were prophets whose duties were associated with places of worship.
Answer:
porque la glucosa genera mas desechos de alcohol y CO2.
Medio mínimo salino en que se reemplaza la glucosa por diferentes fuentes.
Medio de melaza de caña de azúcar 40 g/1 y urea 1,2 g/1 para fermentador.
producido por bacterias, como Bacillus subtilis en laboratorio bajo condiciones .
Explanation: