One reason that it would be appropriate to talk on your cell phone, could be reporting an accident. For instance, a car crash, a sign in the road anything regarding safety of drivers.
Diffuse reflection have a great day
Answer:
Intensity of the transmitted radio wave is 5.406 x 10⁻⁶ W/m²
Explanation:
Given;
power of radio transmitter, P = 63.2 kW = 63200 W
distance of transmission, r = 30.5 km
Intensity of the transmitted radio wave is calculated as follows;
where;
I is the intensity of the transmitted radio wave
Substitute the given values and calculate the intensity of the transmitted radio wave;
Therefore, Intensity of the transmitted radio wave is 5.406 x 10⁻⁶ W/m²
Answer:
Energy
Explanation:
The unit is .
We can see the formula of kinetic energy is
Where is the mass and is the velocity of the object.
Which means its unit would be kg times square of meter per second, that is . Which is often referred as Joule.
Also, when look at the formula of work done by an object.
Where is the force and is the distance traveled by the object due to force .
We an see that its unit is kg meter per second squared times meter. That is equivalent to . This is also a type of energy.
So, the unit is the unit of energy.