Answer:
178.4 times
Explanation:
We have Newton formula for attraction force between 2 objects with mass and a distance between them:
where is the gravitational constant on Earth. is the masses of the 2 objects. and R is the distance between them.
From here we can calculate the ratio of gravitational force between the moon and the sun
We can divide the top and bottom by G and M
So the gravitational force of the sun is about 178 times greater than that of the moon to an object on Earth
Answer:
9.52 am
Explanation:
The p-waves travel with uniform motion (constant velocity), so we can calculate the time they take to travel from the epicenter to the point where they are recorded using
where
d is the distance covered
v is the speed of the p-waves
On average, the speed of p-waves is
v = 7 km/s
Here they have to cover a distance of
d = 5600 km
So, the time they take is:
Converting into minutes,
Since they were recorded at 10.05 am, it means the earthquake occurred 13 minutes before that: so, at 9.52 am.
Answer:
The flow speed at 2.6 cm diameter pipe is 1.2
Explanation:
Given :
Speed at 4 cm diameter pipe
Area of 4 cm diameter pipe
Area of 2.6 cm diameter pipe
From the equation of continuity,
Find the speed at 2.6 cm diameter pipe,
Therefore, the flow speed at 2.6 cm diameter pipe is 1.2
The correct answer is "Humidity". good luck!
Density of a material depends upon it's mass & volume.
You can calculate it by: Density = Mass / Volume
Hope this helps!