Sustainable Energy, SI Edition
2nd Edition
ISBN: 9781337672092
Author: DUNLAP, Richard A.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 8, Problem 12P
a.
To determine
Find the power transferred through a iron rod.
b.
To determine
Find the diameter of the rod after reducing from 10 cm towards reducing the power transferred to the rod is 4 W.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
If a horizontal force of 890 N is developed by the water jet leaving the pipe on the 90°
deflector plate shown in figure below, what is the power produced by the turbine knowing
that its efficiency is 90%. Neglect losses.
Water
150 mm dia
jet
ceflector plate
i need the answer quickly
i need the answer quickly
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- A certain parallel-plate capacitor is filled with a dielectric for which K = 6.50. The area of each plate is 0.0524 m², and the plates are separated by 2.97 mm. The capacitor will fail (short out and burn up) if the electric field between the plates exceeds 179 KN/C. What is the maximum energy that can be stored in the capacitor? Number i ! Units Jarrow_forwardPROBLEM 6.12 The cross-sectional areas of solid shaft of diameter 400 mm and hollow shaft of internal diameter 300 mm of same material are equal. Find the ratio of power transmitted by the two shafts at the same speed.arrow_forward509% Part (b) Consider a 5.0om long wire of mass 10.0 g. The wire is suspended between the poles of a magnet as shown (end view of wire). When a 0.7 A current in the wire is turned on, the wire and magnet are attracted to each other. wire What can you learn about the magnet and the direction of the current through the wire with this information?arrow_forward
- i need the answer quicklyarrow_forwardA flat sheet is in the shape of a rectangle with sides of lengths 0.400 m and 0.600 m. The sheet is immersed in a uniform electric field of magnitude 60.0 N/C that is directed at 20° from the plane of the sheet (Figure 1). Figure 20% 0.400 m * -0.600 m- 1 of 1 Part A Find the magnitude of the electric flux through the sheet. Express your answer with the appropriate units. O Þ= 4.9 μA 4 m² N с ? The compound unit you entered is not recognized. Review a list of acceptable units. No credit lost. Try again.arrow_forwardWhat volume at STP is produced when a current of 20 A is passed through a molten NaCl (l) for 2.0 hoursarrow_forward
- The propellers of a ship are connected to an A-36 steel shaft that is 60 m long and has an outer diameter of 340 mm and inner diameter of 260 mm. If the power output is 6 MW when the shaft rotates at 26 rad/sec. Determine the angle of twist in the shaft radian. G = 75 GPa. Note round off your answer in three decimal placesarrow_forwardI need the answer as soon as possiblearrow_forwardMotor unit A is used to elevate the 300-kg, cylinder at a constant rate of 2 m/s. If the power meter B registers an electrical input of 2.10 kW, calculate the combined electrical and mechanical efficiency e of the system. 1 B 100 kg A lee 300 kg 2 m/sarrow_forward
- A well-insulated turbine operating at steady state is shown on the right. Steam enters at 3 MPa, 400°C, with a volumetric flow rate of 85 m³/min. Some steam is extracted from the turbine at a pressure of 0.5 MPa and a temperature of 180°C. The rest expands to a pressure of 6 kPa and a quality of 90%. The total power developed by the turbine is 11,400 kW. Kinetic and potential energy effects can be neglected. Determine (a) the mass flow rate (in kg/s) at each exit, and (b) the diameter of the duct, d₂ (in cm) where steam is extracted P₁ = 3MPa T₁=400°C (AV)₁ = 85 m³/min Turbine P2 = 0.5 MPa T₂ = 180°C V₂= 20 m/s Power out ¹3 P3= 6 kPa x3 = 90%arrow_forwardQ- If the energy present in a jet of water of 20 cm diameter and having a velocity of 25 m/s could be extracted by a device with 90% efficiency. Find the power extracted. (Assume 1/2g=0.051 sec²/m)arrow_forwardUse an steel tape of length 20 m and a cross-section area of 5 mm 2 and weighing 1.5 kg in , Use the tape by placing it suspended under a tension of 5 kg to measure a distance of 506 m at a temperature of 40 degrees Celsius. the coefficient of linear expansion (a) 0.000018 meters / degree Celsius and it has been placed at a temperature of 20 degrees Celsius under a standard tension of 2.5 kg. Calculate the real distance using the elastic modulus of steel 106 kg / cm?. Q4/arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you