Does it not tell you how long it took it to reach the ground? Constant Velocity should be distance over time
It is because we can't observe chemical properties from our naked eye. So, for observing these, we need to perform appropriate experiments that may need some specific conditions. So, they are harder to observe.
Hope this helps!
Answer:
12 is temperature, and 13 is artic and Antarctic oceans
Explanation:
I'm sure about 13, not so sure about 12
Answer:
Focal Length = 38.61cm, Power = 2.59 Diopter, Converging lens.
Explanation:
When an object is placed 25cm from Gbenga's eye, the glasses lens must produce an image 61cm away (Gbenga's eye near point).
An image 61cm from the eye will be (61cm - 1.6cm) from the glasses.
i.e. 
and 
note 
will be negative because the image is formed on the same side as the object.
finally, 
the formula for finding the focal length 
is given as
The focal length is positive which indicates converging lens
power 
but 
must be in metres
Therefore, 
Speed is a derived term that is the result when distance or displacement is divided by unit time. Speed is a scalar unit which means it only includes magnitude not direction, thus always positive. The answer thus are the three choices given above.
