Shape of a rectangular solid

Assignment Help Mechanical Engineering
Reference no: EM13872195

Force and Torque on a Dam. A dam has the shape of a rectangular solid. The side facing the lake has area A and height H. The surface of the freshwater lake behind the dam is at the top of the dam.

(a) Show that the net horizontal force exerted by the water on the dam equals ?1 pgHA-that is, the average gauge pressure across the face of the dam times the area (see Problem 14.49).

(b) Show that the torque exerted by the water about an axis along the bottom of the dam is pgH'A/6.

(c) How do the force and torque depend on the size of the lake?

Reference no: EM13872195

Questions Cloud

Growth rate of share of common stocks dividends : If the expected constant growth rate of a share of common stock's dividends and per share price decreases, then according to the discounted cash flow approach to valuation, the price of the stock should:
Exhibiting a million-dollar cube of gold : Gold Brick you win the lottery and decide to impress your friends by exhibiting a million-dollar cube of gold. At the time, gold is selling for $426.60 per troy ounce, and 1.0000 troy ounces equals 31.1035 g. How tall would your million-dollar cub..
What are your cultural relationships : How would you describe your cultural (both intercultural and complementary) relationships and What works well and what challenges do you experience?
What is the value of the firms preferred stock : Can you explain the Zero Growth Model and solve this problem? A firm has to pay a dividend of $1.20 per share till perpetuity, a zero growth rate of dividends, and a required return of 10 percent. What is the value of the firm's preferred stock?
Shape of a rectangular solid : Force and Torque on a Dam. A dam has the shape of a rectangular solid. The side facing the lake has area A and height H. The surface of the freshwater lake behind the dam is at the top of the dam.
Dividend is expected to grow at constant rate : Hart Enterprises is expected to pay a $0.50 per share dividend one quarter from today. The quarterly dividend is expected to grow at a constant rate of 1% per quarter. Suppose you require a effective return of 12% a year. How much are you willing to ..
How and when will use evm? : How and when will you use EVM?
What were the potential conflicts and incompatible functions : What might be some difficulties that come about with administering Bob's access? What were the potential conflicts and incompatible functions in Alex's access account authorizations
Is it fair for the banker to suggest that cartwright : Someone told you that the table on page 45 of the Cohen Finance Book does not apply to companies like Microsoft or Apple that have much larger profit ratios, not the 1.6% displayed in C4. Is this true or false? Explain.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Calculate the maximum shear stress for each stress element

A cantilever beam with a 1 in diameter is loaded at the tip with a transverse force of 1000 lb. Figure 2.1 below shows the beam configuration and cross-section with points A at the top, point B at the center and point C at the midpoint between A and ..

  Deternine the duct length required to reach mach 06

air flow enters a constant-area insulated duct with a mach number 0.2. the duct diameter is 10 mm and the friction

  Decide the amount of heat transfer from the air

500kg of air at 35 degrees Celsius dry-bulb and 20 degrees Celsius wet-bulb temperatures is cooled to 13 degrees Celsius dry-bulb and 90% relative humidity. Decide the amount of heat transfer from the air in MJ

  What are individual cutting tool with a number of cutting

what are individual cutting tool with a number of cutting edges. they are useally held on the tool shank with various

  Determine the velocity of the airplane required for pilot

Determine the velocity of the airplane required for pilot to experience weightlessness at the top of the circular path.

  Expands adiabatically to 40 bar 235 k with no significant

argon gas enters a turbine operating at steady state at 100 bar 325 k and expands adiabatically to 40 bar 235 k with no

  A ball is thrown vertically up with a velocity of 91 ftsec

a ball is thrown vertically up with a velocity of 91 ftsec at the edge of a 190-ft cliff. calculate a the height h to

  A pitot-static probe connected to a water manometer is used

a pitot-static probe connected to a water manometer is used to measure the velocity of air. if the de?ection

  The adiabatic flame temperature

Calculate the adiabatic flame temperature attained when methane at 298k, is combusted (a) with oxygen in the molar ratio air/CH4 = 9.524. Assume that CO2 and H2O are the products of the combustion. The adiabatic flame temperature is that temperature ..

  Velocity at which the skydiver will fall toward the earth

A skydiver bails out of an airplane at 2000m above mean sea level but cannot make his parachute work at first. The skydiver weighs 70 kg and is 1.7m tall. Determined the approximate velocity at which the skydiver will fall toward the earth. Base your..

  Air flows through a refrigeration cycle consisting

Air flows through a refrigeration cycle consisting of three processes: Process 1-2 is an isothermal expansion from a pressure of 6.25 bar; Process 2-3 is an adiabatic compression to a temperature of 550 K and a pressure of 6.25 bar;

  In a rankine cycle with reheat steam at 500c expands in a

in a rankine cycle with reheat steam at 500c expands in a high pressure turbine until it reaches the saturated vapor

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd