Answer:
this is a good suggestion
Explanation:
when the sugar cubes are crushed and they become a powder so its surface area increases. And as surface area is directly proportional to rate of reaction so the desired solution will be formed rapidly
Acceleration = Change in velocity / time taken
= (5 - 15) / 2
= -5 ms^-2
Answer:
15.13 m/s
Explanation:
The wave speed of the stretched rope can be calculated using the following formula

where
is the tension on the rope and
is the density of the rope per unit length

1) Right answer: 
Gravity is a physical force with which the Earth exerts on all bodies towards its center due to the fact its mass is greater than the bodies on its surface.
Nevertheless, it is important to note that this value is not the same in all the points of the planet, that is why an average value is used, which is
.
2) Right answer: 
The Average Velocity Formula is:

Where
is the Initial Velocity and
is the Final Velocity.
Knowing this, let's apply the formula:


3) Right answer: 


4) Right answer: 

