Answer:
t=2.10 s
u= 47.40 m/s
Explanation:
given that
h= 21.8 m
x= 101 m
g=9.8 m/s²
Lets take horizontal speed of ball = u m/s
The vertical speed of the car at initial condition is zero ( v= 0).
We know that
v= 0 m/s
now by putting the values
21.8 = 1/2 x 9.8 x t²
t=2.10 s
This is time when ball was in motion.
Now in horizontal direction
x = u .t
101 = u x 2.1
u= 47.40 m/s
Answer:
2.43 m
Explanation:
From the question given above, the following data were obtained:
Number of wave crest = 7
Time = 10 s
Distance between each crest = 2.43 m
Wavelength =?
The wavelength of a wave is simply defined as the distance between two crest or trough of a wave. This simply means that we can obtain the wavelength of a wave by calculating the distance between two crest i.e
Wavelength = distance between each crest.
From the question given above, we were told that the distance between each crest is 2.43 m.
Therefore, the wavelength of the wave is 2.43 m
The temperature of the darc spaces can sometimes hike to extremely hot temperatures. Some amount of energy due to trapping matter inside is liberated and turned into light which can be seen in X-rays.
<h3>What are x-rays?</h3>
A piercing type of high-energy electromagnetic radiation is called X-radiation. The majority of X-rays have a wavelength between 10 picometers and 10 nanometers, which equates to frequencies between 30 petahertz and 30 exahertz.
X-ray scans show that a galaxy cluster's intergalactic region is extremely hot. This is due to the fact that the intergalactic medium, also known as the intergalactic media, is primarily composed of heated, ionized hydrogen with traces of heavier elements like silicon, carbon, and oxygen.
Instruments to detect X-rays must be transported to high altitudes by balloons, sounding rockets, and satellites since X-radiation is absorbed by the Earth's atmosphere.
To learn more about X-rays, here
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According to their increasing no. of protons
Explanation:
According to their atomic number
Dissolving can separate the three. Because pepper doesn't mix with water and neither do pebbles.