<span>Thomson's First Cathode Ray Experiment. Thomson had an inkling that the 'rays' emitted from the electron gun were inseparable from the latent charge, and decided to try and prove this by using a magnetic field. His first experiment was to build a cathode ray tube with a metal cylinder on the end.</span>
Answer:
electromagnetic waves need a medium to travel through
Answer:
V = 493421.05 [gal]
Explanation:
This is a problem that consists of handling units, we can calculate by first-hand the volume, then convert units from cubic meters to gallons.
V = 50 * 25 * 1.5
V = 1875 [m^3]
Now we need to convert units, using the proper conversion factor.
![1875[m^3]*\frac{1000lt}{1m^3} *\frac{1gal}{3.8lt} \\493421.05[gal]](https://tex.z-dn.net/?f=1875%5Bm%5E3%5D%2A%5Cfrac%7B1000lt%7D%7B1m%5E3%7D%20%2A%5Cfrac%7B1gal%7D%7B3.8lt%7D%20%5C%5C493421.05%5Bgal%5D)
The energy of a wave is directly proportional to the square of the D.Amplitude
the energy of a wave is given as
E = (0.5) (μ v t ) w² A²
where t = time
μ = mass per unit length of the string
v = wave propagation of velocity.
w = angular frequency
A = amplitude
E = energy of wave
From the equation , we see that
the energy of wave "E" is directly proportional to A².
hence the correct choice is D. Amplitude.
Answer:
Reducing Discrimination by Changing Social Norms
Reducing Prejudice through Intergroup Contact
Explanation: