Anything that doesnt have a change in magnitude or direction is something thats not accelerating. so, for example, a car moving at a constant speed of 5mph on a flat road is an example of an object moving but not accelerating
Answer:
the choice of a glider to hanging mass is a ratio of 20.2
Explanation:
The Newton´s second law for glider is:
Fnet=Ma
T=Ma
The Newton´s second law for hanging mass is:
Fnet=ma
mag-T=ma
Replacing:
mag-Ma=ma (eq. 1)
Clearing a:
a=(mg)/(m+M)
The expression for motion is:
Clearing a:
Replacing values:
From eq. 1:
M/m=20.2
The Sun is a huge, glowing sphere of hot gas. Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur.
So typically I would say hydrogen and helium.
Answer:
H = 5 m
Explanation:
As the person leaves the slide horizontally so the time taken by the person to hit the water is given as
so we can find the vertical velocity by which person will hit the water using kinematics
now the speed of the person at the end of the slide is given as
now by energy conservation we can find the initial height
Answer:Yes, water indeed expands when it changes form from liquid to solid. And this is because water has a property called “hydrogen bonds”, and these bonds occur between each water molecule. But when water is in a liquid form these hydrogen bonds break more easily and occur less frequently. When the temperature drops the kinetic energy also drops, which in turn makes hydrogen bonds form more frequently. So the water molecules form a lattice, which is less dense than regular liquid water.
Explanation:
