Humidity is 90 it will be hotter so the child has to add water to the goldfish bowl
Answer:

Explanation:
Given that
Train 1 (observer):
Speed = 109 km/h
Train 2 (source):
Speed = 99 km/h
Train 2 emitting frequency = 500 Hz
We know that observer and source are moving toward each other, then frequency heard by observer can be given as follows

Where C is the velocity of sound (C=1225 Km/h)
Now by putting the values



Answer:
The rocket travelled 37km per minute
Explanation:
185÷5=37
<span>The
number of cooling fins effect increases the rate of energy transfer from a
radiator. It is because the cooling fins have an enlarged area allows heat to
be transferred into the area away from the object it needs to have less heat
with. Thereby cooling the object with cooling fins.</span>
Answer:
Between 100 and 120 million years old
Explanation:
The principle of superposition refers to one of the geological principles used in the determining the relative depositional history or sequence of rock stratas in geologic stratigraphic study. The superposition principle explains that rocks deposited in stratas with the oldest rock layer being at the base and the youngest at the topmost layer. Hence using this principle, we can conclude that ; Rock layer M lies in between layer T and R ; thus M is younger than T and older than R. Therefore, the age of M will be between the range of age T and R.