Combustion product gases from a boiler flow along the x axis with a speed of V = 3x m/s and a pressure of p = 5x 2 N/m2 , where x is in meters. (a) Calculate the time rate of change of pressure at the fixed location x = 2 m. (b) Obtain the time rate of change of pressure for a fluid particle flowing past the point x = 2 m. (c) Explain without using any equations why the answers to parts (a) and (b) are different.

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct

idk what the heck he answer is, i’m just putting this here so i finish my account

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

have a nice day!