No.
In the northern hemisphere, summer is consider to be around June/July/August.
In the Southern Hemisphere, it is the opposite: summer is in the months of December/January/February.
In some areas such as near the equator, the seasons themselves differ. For example, where I live, we have three seasons: wet season, dry season, and build up.
Hope this helps.
Terminal velocity is when something stops accelerating and just goes at one constant speed so if you put it into a sentence it would be like the rock falling off of the cliff did not accelerate instead it stayed at a terminal velocity
Answer:
If you change the number of neutrons in an atom, you get an isotope of the same element. The addition of a neutron can make an atom radioactive. When you change the number of protons in an atom, you will change the atom from one element to a different element.
Explanation:
You have to solve this by using the equations of motion:
u=3
v=0
s=2.5
a=?
v^2=u^2+2as
0=9+5s
Giving a=-1.8m/s^2
Then using the equation:
F=ma
F is the frictional force as there is no other force acting and its negative as its in the opposite direction to the direction of motion.
-F=25(-1.8)
F=45N
Then use the formula:
F=uR
Where u is the coefficient of friction, R is the normal force and F is the frictional force.
45=u(25g)
45=u(25*10)
Therefore, the coefficient of friction is 0.18
Hope that helps
Answer:
Explanation:
Moment of inertia of bar and one ball attached at its one end
= 3.8 x .8² / 12 + 2.5 x .4² ( MI of bar = m l² / 12 and sphere = m r² )
= .20267 + .4
I = .60267 kg m²
Net force acting on the rod which will try to rotate will be weight of 2.5 kg ball . Because it was this force which was balancing the whole system. Torque due to this force = mg x r
= 2.5 x 9.8 x .4 Nm
= 9.8 Nm
angular acceleration = torque / moment of inertia
= 9.8 / .60267
= 16.26 rad / s²
b ) This angular acceleration will change because torque will change ( decrease in fact ) . It is to be noted that maximum value of torque acts when force is perpendicular . Since torque decreases , angular acceleration decreases.