Do you think you could identify a mystery substance using only its mass or weight? Explain your answer.
1 answer:
You might be interested in
1) Distance: 9 m, displacement: +5 m
2) The average speed is 3 m/s
3) The average velocity is +2 m/s
Explanation:
1)
We start by reminding the definitions of distance and displacement:
- Distance: it is the total length of the path covered by an object, regardless of the direction of motion
- Displacement: is the distance in a straight line between the initial position and final position of motion
Let's now analyze the motion represented in the figure:
Initial position:
Intermediate position:
Final position:
Therefore, the distance covered is
While the displacement is:
2)
The average speed is a scalar quantity defined as
where
d is the distance travelled
t is the time taken
For the object in this problem,
d = 6 m
t = 2 s
Substituting, we find the average speed:
3)
The average velocity is a vector quantity defined as
where
d is the displacement
t is the time interval
For the object in this problem,
d = +12 m
t = 6 s
Substituting, we find the average velocity:
Where the positive sign + indicates the direction of the velocity vector.
Learn more about average speed and average velocity:
#LearnwithBrainly
(a) Draw the circuit diagram for the three resistors in series that you assembled in Part 2. Label the voltage and the resistances of each resistor
The diagram will look like the following:
As all the resistors are equal, their voltage drop will also be equal, which will be a third of the input voltage
(b) For the three resistors in series, how did the measured total voltage, current across each resistor, total current, and voltage drop across each resistor compare to the values that you calculated?
The value of the measured voltage on each resistor can be seen as to be exactly as calculated, which is 1/3 of the voltage input. The total current can be calculated as:
Which is the one seen on the amperimeter
(c) How did the equivalent resistance, voltage drop across each resistor, total current, and total voltage change as you added resistors in series to the circuit?
The voltage drop on each resistor will decrease once you add more resistors, as there will be more total resistance, and thus less current. As the resistance of each resistor is constant, the relation V=RI given by Ohm's law will be reduced.
Answer:d
Explanation:
Given
Magnitude of Vector A is 3 m
and Magnitude of vector B is 4 m
So the maximum value of resultant can be 7 m when both are at an angle of
and its minimum value can be 1 m when both are at angle of
So the resultant must lie between 1 m to 7 m