Answer:
Increases
Explanation:
From Newton's second law:
F = ma
If F stays the same and m decreases, then a increases.
Therefore, the magnitude of the train's acceleration increases (the acceleration becomes more negative).
Answer:
Mid ocean ridge is formed when old oceanic crust is forced under continental plates.
Explanation:
Ocean basin is a kind of land surface that is present under an ocean and below the water.
Ocean basin contain continental shelf,mid ocean ridge that is found on the sea floor.
The size of ocean basin is equal to the size of an ocean and is found below the ocean.
When, water covers the earth's crust region in the distant past,ocean basin formation occurs.This prcess require long time as spreading of sea floor and tectonic plates takes place.
Ex-Atlantic Ocean basin is formed over million years that is present in the European Continent.
Explanation:
I don't have time for you
Answer:
12 Neutrons
Explanation:
So the mass of sodium is 22.990. You round it up to get 23(as stated in the problem). So, <em>what exactly is atomic mass?</em>
Atomic Mass is the total amount of neutrons and protons added up to form a total mass. So when you subtract 23-11 you get 12 Neutrons.
<u>Tip: </u>Don't know if you need this but-
The neutrons and protons are typically close in number (unless it's an isotope). So say that you subtract and the numbers of protons and neutrons aren't close at all. Well if that's the case, it's probably wrong.
hope this helps!!
Answer:
The coefficient of static friction between the box and floor is, μ = 0.061
Explanation:
Given data,
The mass of the box, m = 50 kg
The force exerted by the person, F = 50 N
The time period of motion, t = 10 s
The frictional force acting on the box, f = 30 N
The normal force on the box, η = mg
= 50 x 9.8
= 490 N
The coefficient of friction,
μ = f/ η
= 30 / 490
= 0.061
Hence, the coefficient of static friction between the box and floor is, μ = 0.061
