Answer:
C
Explanation:
I think it could be C because, gasoline which is used by cars is a big factor in more emission being placed in the air. With electrical powered cars like Tesla, emission can decrease.
Sorry if i'm wrong
But, hope this helps :)
Correct choices:
- All waves travel at 3.00 108 m/s.
- The electric and magnetic fields associated with the waves are perpendicular to each other and to the direction of wave propagation.
Explanation:
Let's analyze each statement:
- All waves have the same wavelength. --> FALSE. Electromagnetic waves have a wide range of wavelengths, from less than 10 picometers (gamma rays) to hundreds of kilometers (radio waves)
- All waves have the same frequency. --> FALSE. As for the wavelength, electromagnetic waves have a wide range of frequencies also.
- All waves travel at 3.00 108 m/s. --> TRUE. This value is called speed of light, and it is one of the fundamental constant: it is the value of the speed of all electromagnetic waves in a vacuum.
- The electric and magnetic fields associated with the waves are perpendicular to each other and to the direction of wave propagation. --> TRUE. Electromagnetic waves are transverse waves, which means that their oscillations (represented by the electric field and the magnetic field) occurs perpendicularly to the direction of motion of the wave.
- The speed of the waves depends on their frequency. --> FALSE. In a vacuum, the speed of ALL electromagnetic waves is always equal to c, regardless of the frequency.
Answer:
h = 2.78 m
Explanation:
Potential Energy(PE)
Mass(m)
Gravity(g) which is approximately equal to 10.
Height (h)
PE = mgh
41772.5 = 1500 * 10 * h
41772.5 = 15000h
h = 41772.5/15000
h = 2.78 m