Question

i. Define inertia?

ii. Give one example of metalloid?

iii. How many types of mixture are there, name them?

iv. What is Newton's third law of motion?

v. What is the momentum of a man of mass 75kg when he walks with a uniform velocity of 2m/s.

vi. Name a non-metal which is good conductor of electricity.



if answered them correctly I will wark you as brainliest ​

Answer 1

Explanation:

Inertia, property of a body by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the magnitude or direction of its velocity. Inertia is a passive property and does not enable a body to do anything except oppose such active agents as forces and torques.

ii) , silicon (Si), germenium (Ge), arsenic (As) and antimony (Sb).

iii) There are two types of mixtures: heterogeneous and homogeneous

iv) Newton's third law states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction. The third law is also known as the law of action and reaction.

v) Given : m = 75 kg

v = 2m/s

p = ?

we know that momentum p = m x v

∴ p = 75 x 2

= 150 kg m/s.

vi) Graphite is a non-metal and it is the only non-metal that can conduct electricity