Answer: b
Explanation:
Ec= (1/2)m × v^2
By the formula, you can see that the bigger the mass, the bigger the Cinetic Energy.
<span>W=98*1.49/9.8 N
</span>soo <span>14.9 Newtons</span>
Answer:
Acceleration is 
Solution:
As per the question:
Radius of the circle, R = 1.8 m
Height above the ground, h = 1.8 m
Horizontal distance, x = 9.9 m
Now,
The magnitude of the centripetal acceleration can be calculated as:
where
v = velocity
R = radius
= centripetal acceleration
Now, if we consider the vertical component of motion only, then considering the initial velocity, 'u' = 0, from kinematic eqn:
t = 0.606 s
Now, for the horizontal component of velocity:
x = vt
Now, we know that the centripetal acceleration is given by:
Answer:
B Electrocoagulation.
It is a process that involves the use of high frequency current to cause coagulation usually of protiens in tissues and also the destruction of abnormal tissues making use of the heat generated by the electric current. This tissue could be a tumor or some other kind of lesion.
Explanation:
The passage of electric current through the electrode (second electrode that has been sterilized) in contact with the tissue causes the molecules within them to vibrate. This leads to a sharp increase in the temperature of the tissue due to the heat generated by the electric current. This is what causes the coagulation of the proteins within the tissue and also burns the tissue thereby effectively destroying it.
Electrocoagulation also called electrocautery, electrofulguration, and fulguration.
Answer:
I don't know the first one but I think I know II
Explanation:
there there are more people people in cities than there are in rural areas and because of this more people will breathe cough get sick and pull it the air. plusplus there are no plants to keep the air clean but there are plants in rural areas.
