Answer:
c) true. With the magnetic field you can determine the Poynting vector and this is equal to the intensity of the wave
Explanation:
An electromagnetic wave carries energy that is given by the vector of poyntíng
S = 1 / μ₀ E x B
The electric and magnetic fields are related
E = c B
Substituting
S = c /μ₀ B² / 2
The two comes from the average value
Let's examine the claims
a) false to determine the wavelength the frequency is needed
b) False. To find the electric field you need the magnetic field
c) true. With the magnetic field you can determine the Poynting vector and this is equal to the intensity of the wave
They are, in fact termed: Body Waves.
Answer:
sure if its easy im jp ill help u
Explanation:
Answer:
85 Kg
314.041 N
Explanation:
We are given that
Mass of body on earth=85 kg
Acceleration due to gravity on earth=
Weight of body on earth=830 N
We have to find the mas of body and weight of body on Mars.
We know that mass of an object does not change with location .
It remain same everywhere.
Mass of body on Mars=85 kg
Gravitational acceleration on the surface of Mars=
We know that
Weight =
Using this formula
Weight of body=
Hence, the weight of body on Mars=314.041 N
Answer:
The acceleration of gravity on the Moon is only one-sixth of that on Earth. If we hit a baseball on the moon with the same effort(and at the speed and angle)that we would on earth, the ball would land 6 times as far. The ball on the moon will cover 6 times more distance than Earth.
Explanation:
Speed=distance travelled/Time required speed
Speed=d/t
Acceleration of gravity on earth=9.8 m/s^2
Acceleration of gravity on Moon=1.62 m/s^2
So the maximum height of ball will be the ration of these both gravity.