Gravitational force = Gxm1xm2 /r^2
This equation depends only upon object's masses and distance between them. So option b is correct
The speed of the wave with the given frequency and wavelength is 1.2m/s.
Given the data in the question;
- Wavelength of the wave;
- Frequency;
- Speed of the wave;
<h3>
Wavelength</h3>
Wavelength is the distance over which the shapes of waves are repeated. It is the spatial period of a periodic wave.
It is expressed as;
Where v is velocity/speed and f is frequency.
Now, we can easily get the speed of the wave by substituting our given values into the expression above.
Therefore, the speed of the wave with the given frequency and wavelength is 1.2m/s.
Learn more about Speed, Frequency and Wavelength here: brainly.com/question/27120701
Answer:
<em>a. ratio = 40</em>
<em>b. 4 houses can be supplied</em>
Explanation:
<u>Relations in a Transformer</u>
The pole-mounted transformers are mainly used to lower higher distribution voltages to residential-level voltages. It is done by using a combination of primary and secondary coils so the relation or ratio is correctly achieved.
a. The ratio between the number of turns in the primary coil to the secondary coil is
b. This ratio also applies to the primary and secondary currents, being the secondary current r times the primary current.
The ratio between the currents is given by
We can know the secondary current
Given each house requires 40 A rms, we can supply electricity to 160/40=4 houses
Answer:
the rigid outer part of the earth, consisting of the crust and upper mantle.
Explanation:
Answer:
b) Distance covered before stopping.
Explanation:
If you want to find the distance d required to come to a stop starting at some initial speed v, with braking acceleration a, use the kinematic relation
vf2 - vi2 = 2ad
vi = initial speed at the moment braking begins = v
vf = final speed = 0 (comes to a full stop)
-v2 = 2ad
d = -v2/(2a)