Question

class 9th (define the following terms​

Answer 1

Answer:

1. tissue - the group of cell which do similar function is called tissue

1. power - the amount of work done for unit time is called power OR the rate of doing work done is called power
2. acceleration- the rate of change of velocity is called acceleration
3. mechanical energy - the energy possess by a body due to its State of rest or state of motion is called mechanical energy
4. joule - one joule is the energy required to do 1 joule of work . since , the unit is Very small, we often use larger unit kilojoule ( KJ) . 1 kj = 1000 joule
5. momentum - momentum of a moving body is defined as the product of its mass and velocity . momentum is a vector quantity . it's direction is the same as that of velocity

Answer 2

Explanation:

1. Mechanical energy-mechanical energy is the sum of potential energy and kinetic energy
2. Tissue-Tissue, in physiology, a level of organization in multicellular organisms; it consists of a group of structurally and functionally similar cells and their intercellular material.
3. Valencya measurement of the power of an atom to combine with others, by the number of hydrogen atoms it can combine with or take the place
4. Power -power is the amount of energy transferred or converted per unit time.
5. IsobarsIsobars are atoms of different chemical elements that have the same number of nucleons
6. Acceleration- Rate of change of velocity
7. 1 joule-It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's motion through a distance of one metre (1 newton metre or N⋅m). ...