Answer:
The value is 
Explanation:
From the question we are told that
The height is 
The height of the burning roof is 
The horizontal distance is 
The height of the truck is 
Generally the time for the water to hit the roof from the hose is mathematically represented as
=> 
=> 
Generally the velocity of the water is mathematically evaluated as
Generally from Bernoulli's Equation we have that
Here ![P_1 [\tex] is pressure in the chamber which we are to calculate , [tex]P_2 [\tex] is the atmospheric pressure with value [tex]P_2 = 101325 \ Pa [\tex] , [tex]v_1 [\tex] is the velocity of the water before it starts flowing with value [tex]v_1 = 0 m/s [\tex] , [tex]\rho [\tex] is the density of water with value [tex]\rho = 1000 \ kg/m^3 [\tex] So [tex]P_1 + \frac{1}{2} 0^2 * 1000 + 1000 *9.81 *0.5 = 101325 + \frac{1}{2}* 15.5^2* 1000 + 1000 *9.81 *10](https://tex.z-dn.net/?f=P_1%20%5B%5Ctex%5D%20is%20pressure%20in%20the%20chamber%20which%20we%20are%20to%20calculate%20%2C%20%5Btex%5DP_2%20%5B%5Ctex%5D%20is%20the%20atmospheric%20pressure%20with%20value%20%20%5Btex%5DP_2%20%3D%20%20101325%20%5C%20Pa%20%20%5B%5Ctex%5D%20%2C%20%5Btex%5Dv_1%20%5B%5Ctex%5D%20is%20the%20velocity%20of%20the%20water%20before%20it%20starts%20flowing%20with%20value%20%5Btex%5Dv_1%20%20%3D%20%200%20m%2Fs%20%5B%5Ctex%5D%20%2C%20%5Btex%5D%5Crho%20%5B%5Ctex%5D%20%20is%20the%20density%20of%20water%20with%20value%20%5Btex%5D%5Crho%20%3D%20%201000%20%5C%20kg%2Fm%5E3%20%20%5B%5Ctex%5D%20%3C%2Fp%3E%3Cp%3ESo%20%3C%2Fp%3E%3Cp%3E%20%20%20%20%20%20%20%20%5Btex%5DP_1%20%20%2B%20%5Cfrac%7B1%7D%7B2%7D%200%5E2%20%2A%201000%20%2B%201000%20%2A9.81%20%2A0.5%20%3D%20101325%20%20%2B%20%5Cfrac%7B1%7D%7B2%7D%2A%2015.5%5E2%2A%201000%20%2B%201000%20%2A9.81%20%2A10)
Answer:
d) 1000 times
Explanation:
As we know that difference of sound level is given as
so here we need to find the ratio of two intensity
it is given as
now we have
so it is
d) 1000 times
The rms current in the transmission lines is I = 487.18 A.
The root-imply-rectangular (rms) voltage of a sinusoidal supply of electromotive force is used to represent the source. it is the rectangular root of the time average of the voltage squared.
Alternating-present day circuits. the root-imply-square (rms) voltage of a sinusoidal source of electromotive force is used to symbolize the supply. it's far the square root of the time average of the voltage squared.
Electric power is by using present day or the waft of electric fee and voltage or the capacity of rate to deliver electricity. A given cost of power can be produced by using any combination of contemporary and voltage values
power = 38 M watt
rms voltage = 78 K v
power = IV
I = power/V
I = (38 * 1000000)/78*1000
I = 487.18 A.
Learn more about rms current here:-brainly.com/question/20913680
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Answer:
the car is moving so that how it gos so fast
Explanation:
