Answer:
a)= technology is any appliances which makes our work very fast without much manual effort.It is used to make our life simple and easy.
I would go with C because all the rest of the answer are sitting on something.
Chemical because when you eat, the food give off a chemical bond
<u>Answer:
</u>
Arrow projected at an angle of 46⁰ will travel 99.94 m.
<u>Explanation:
</u>
The arrow fired at an angle 45⁰ travels 100 m horizontally, the horizontal movement is because of horizontal component of velocity.
Horizontal component = u cos θ, where u is the velocity of projection.
The time taken to travel 100m is depending on vertical component of velocity, time taken is calculated by dividing vertical component of velocity by acceleration due to gravity and multiplying by two.
So, time taken = 2u sin θ/g
Horizontal distance travelled by projectile,
So. H ∝ sin 2θ
Here 
So an arrow projected at an angle of 46⁰ will travel 99.94 m.