Answer:
8.18 × 10 ⁻²¹.
Explanation:
The potential energy may be defined as the energy stored in the rest objects. This energy is important for the maintenance of the concentration gradient in the cell.
The change in the potential energy can be calculated as follows:
W = v2-v1 × q.
Here, the charge of the proton is considered because k+ ions has been used.
W= 0 - ( - 70. 5 mV) × 1.602 * 10^-19 C.
W= 8.18 × 10 ⁻²¹J.
Thus, the answer is 8.18 × 10 ⁻²¹.
Answer:
Abiotic factors refer to non-living physical and chemical elements in the ecosystem. ... Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction.
Explanation:
Heat can be transferred from one object to another since, If there is a temperature difference between two systems, heat will always find a way to transfer from the higher to the lower system.
Kinetic energy can be transferred from one object to another, when two objects crash. One example of kinetic energy being transferred from one object to another would be a collision of pool balls, Since one ball would hit another causing it to move. Also Kinetic Energy is, “The <u>energy</u> of motion, observable as the movement of an object, particle, or set of particles. Any object in motion is using kinetic energy: a person walking, a thrown baseball, a crumb falling from a table, and a charged particle in an electric field are all examples of kinetic energy at work.”
And last but not least, Thermal Energy which, is often referred to as heat. The thermal energy of matter depends on how fast the atoms or molecules are moving. The faster they are moving, the more thermal energy they possess. Therefore, the temperature of the matter would be higher. Thermal energy is a form of kinetic energy. One example of Thermal energy being transferred from one object to another is, Thermal energy from a hot stove is transferred to a metal pot and causes the water molecules to move faster increasing the temperature of the water. Fun fact; Thermal Energy can be transferred in three ways known as, Conduction, Convention, Radiation.
Meteorology is the science of the weather. The weather person on the TV is a meteorologist.
Some of them quite liked meteorology, but others only tolerated it as it is not an exact science
Answer:
B. After clearcutting, plant uptake stopped and nitrogen accumulated in the soil.
Explanation: Clear cutting leaves the soil bare and allows for direct penetration of sunlight this increases the soil temperature which favors the activity of soil microrganism. This microrganism activity increase the production of ammonium and nitrate hence the increase in soil Nitrogen level. Clearcutting then allows for accumulation of Nitrogen produce due to removal of plant or forest tree that could use up the Nitrogen produced.
