Answer:
The heat transferred to water equals 1600 kJ
Explanation:
By the conservation of energy we have
All the kinetic energy of the moving vehicle is converted into thermal energy
We know that kinetic energy of a object of mass 'm' moving with a speed of 'v' is given by
Thus
Thus the heat transferred to water equals
Answer:
464.373 ft / s, 43200 ft/s²
Explanation:
200 mi/h = 293.333 ft/s
3 mi/h² = 3 × (1 ft / s² / 2454.5454) = 0.0012222 = acceleration of the airplane
velocity of the rotating propeller Vr = ωr where ω is the angular rate = 120 rad/s and the radius = 6 ft /2 = 3 ft = 120 × 3 = 360 ft / s
Velocity of the particle = resultant of the velocities = √ ( 293.333² + 360² ) = 464.373 ft / s
centripetal acceleration = Vr² / r = 360² / 3 = 43200 ft/s²
acceleration of the particle = resultant accelerations = √ ( 0.001222² + 43200²) = 43200 ft/s²
Answer:
115 Ib/ft^3
Explanation:
To determine the maximum dry density in Ib/ft3 we have to calculate :
Bulk unit weight ( yb ) ; W / v
Dry unit weight ( yd. ) : yb / ( 1 + w )
For every set of data given
assuming v = 1/30 ft^3
calculating for the 3 data set ( maximum dry density )
weight of soil (W) = 4.40
moisture content (%) (w) = 15.0 = 0.15
Bulk unit weight (yb) = 4.40 / (1/30) = 132 Ib/ft^3
Dry unit weight ( yd. ) = 132 / ( 1 + 0.15 ) = 114.702 Ib/ft^3
therefore after calculations the maximum dry density in Ib/ft^3 ≈ 115 Ib/ft^3
Bias or persuasion perhaps
Hope this helps!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Corps regulators now send threatening letters to farmers who switch from one crop to another, such as rice to orchards, or perform routine plowing.
Explanation:
The Corps says the farmers can be performing a “land-use” change that suddenly puts a farm under Corps jurisdiction. It is getting harder and harder, and in legal terms more dangerous, to be an American farmer these days, thanks to the aggressive behavior of the federal Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers. Increasingly, those regulations are changing at the arbitrary say-so of the Corps regulators who implement the EPA’s regulations on the ground, even though most practices followed by American farmers have been exempted from CWA prohibitions since it was written in 1977.