Which of these is the BEST answer for why science is important?
1 answer:
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The distance - time graph of the humming bird is missing, so i have attached it.
Answer:
Instantaneous velocity = 0.5 m/s
Explanation:
From the attached graph, at time t = 1 s, the corresponding distance is 0.5 m.
Instantaneous velocity is the velocity at that point.
Thus;
Instantaneous velocity = 0.5/1
Instantaneous velocity = 0.5 m/s
Answer:
V= 57.5 V
Explanation:
- If the resistors are in the linear zone of operation, the potential difference across them, must obey Ohm's law:
- For the 6.0 Ω resistor, if the potential difference across it is 15 V, we can find the current flowing through it as follows:
- In a series circuit, the current is the same at any point of it, so the current through the battery is I = 2.5 A
- The equivalent resistance of a series circuit is just the sum of the resistances, so, in this case, we can write the following equation:
- Applying Ohm's Law to the equivalent resistance, we can find the potential difference through it, that must be equal to the potential difference across the battery, as follows:
Answer:
v = 19.6 m/s
Explanation:
Height of building = 30.6 m.
Height of window from the ground level= 10.7 m.
Acceleration due to gravity = 9.8
At initial condition ball at rest condition so u= 0 m/s.
Lets take when passes through the window ,velocity is v.
Here acceleration is constant so we can apply motion equation .
We know that
v= u + a t
So by putting the values
v = 0 +9.8 x 2
v = 19.6 m/s
So the velocity of ball is 19.6 m/s when passes through the window after 2 s.