Answer:
Pressure = Density x Gravity acceleration x Height
Density of water = 1000 Kgm^-3
Gravity acceleration = 9.8 ms^-2
So it is 4.50.
Hope this helps and please mark me brainliest!
Answer: False
Explanation:
Winds are named for the cardinal direction they blow from. Hence, a wind that <em>"blows towards the east"</em>, logically should <u>come from the west </u>and is called a <em>"west wind"</em>.
In thise sense, one of the best examples of this type of wind are the <em>Westerlies</em>, which are are prevailing winds that blow from the west at midlatitudes and have the characteristic that are stronger during winter and weaker during summer.
Therefore, the statement is false.
Corrected question: The wavelength of light beam<u> </u><u>A</u> is twice the wavelength of light beam B. The energy of a photon in beam A is:
Answer:
B
Explanation:
Energy = hc/λ
λ(A) =2λ(B)...................equation 1
We will solve for the ratio of energy of A to energy of B.which is
=(hc/λA) ÷ (hc/λB)
referring to equation 1 we have
=(hc/2λB) ÷ (hc/λB)
=hc/2λB) × (λB/hc)
= λB/2λB
=1/2
The energy of A is half of B
If the field strength between the plates is 9 volts per cm, then over a path of 1/2cm parallel to the field, the potential changes by (1/2) x (9 volts) = 4.5 volts.
The answer is C. Substance Y has the highest temperature because its particles have more kinetic energy.
