To develop this problem it is necessary to apply the concepts related to the Dopler effect.
The equation is defined by
Where
= Approaching velocities
= Receding velocities
c = Speed of sound
v = Emitter speed
And
Therefore using the values given we can find the velocity through,
Assuming the ratio above, we can use any f_h and f_i with the ratio 2.4 to 1
Therefore the cars goes to 145.3m/s
To perform an experiment to determine the force constant of a spring, you will need a stand with a boss and clamp, a spiral spring, a meter rule and different weights.
The setup is arranged as shown in the image attached. The natural length of the spring is first recorded. Different weights are added to the spring one after the other and the extension is recorded.
The weight is now plotted on the vertical axis and the extension is plotted on the horizontal axis. The slope of the graph is the force constant of the spring.
Learn more: brainly.com/question/10991960
<span>Batteries provide a voltage difference.</span>
Answer:
- See the graph attached with the vectors.
Explanation:
The exercise is to draw the corresponding vectors:
Every one is the multiplication of a scalar by a vector.
The result of multiplying a scalar by a vector is a vector with the same direction of the original vector enlarged in a factor equal to the scalar magntitude.
Thus, in a graph the resulting vector is represented with a parallel arrow and pointing in the same direction as the original vector but with a length equal to the original length multiplied by the magnitude of the scalar.
For instance, the vector is represented with an arrow in the same direction of and with twice its length.
The figure attached contains the five requested vectors using the procedure explained above.
Answer:
It will take 6.1seconds for the projectile to hit the ground.
Explanation:
In projectile, the time taken by an object to spend in air is its time if flight.
Time of flight = 2Usin(theta)/g
where u is the initial velocity = 75m/s, theta = 24°, g = 10m/s²
Time of flight = 2(75)sin24°/10
Time of flight = 150sin24°/10
Time of fight = 6.1seconds.
This means that it will take 6.1seconds for the projectile to hit the ground.