Answer:
Explanation:Advatages
1..Its takes precise reading accurate
2. it is moveable because of its small weight
3.It is easy to read and can be kept inside water
Disadvantages
1. It breaks easily because of its small size
2. If broken there can be risk of exposure to mercury chemicals.
Answer:
these are in the hooks the balloons repel each other if the hooks are isolated.
Explanation:
In electrostatics, charges of the same sign repel and of a different sign attract each other.
With this explanation we analyze the situation presented, they indicate that the balloons have a negative taste, so when these are in the hooks the balloons repel each other if the hooks are isolated.
If the hooks are connected to Earth, the poop of the balloons is neutralized, so there is neither attraction nor repulsion.
Answer:
The change in velocity is 15.83 [m/s]
Explanation:
Using the Newton's second law we have:
ΣF = m*a
The force in the graph is 185 N, therefore:
Now using the following kinematic equation:
Now replacing the values:
Answer:
20.65 m/s
Explanation:
You are gonna wanna use a calculator for this one
so we will write all the known variables:
h = 15.6 m
initial velocity (u) = 10.7 m/s
acceleration (a) = 10 m/s/s (gravity)
From the third equation of motion:
<em>v² - u² = 2ah</em>
<em>v² - (10.7)² = 2(10)(15.5)</em>
<em>v² - (10.7)² = 312</em>
<em>v² = 312 + 114.49</em>
<em>v² = 426.49</em>
v = 20.65 m/s
Answer:
D. upwards
Explanation:
The electron moves in the direction opposite to the current (by definition)
Since the field is out of the N pole the electron will be deflected DOWNWARD
If the direction is reversed then it will be deflected UPWARD