subject

Engineering, 27.11.2019 00:31 Naara21

Alarge oak tree produces 3 tons of wood in 50 years of growth. the tree has a canopy 10 m in diameter and collects solar energy for 6 months of the year. the average solar insolation during this 6 months is 177 w/m2. assuming a wood heating value of 20 mj/kg, what is the tree’s efficiency for converting solar energy?

ansver

Answers: 2

Show answers

Another question on Engineering

question

Engineering, 04.07.2019 18:10

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Answers: 2

question

Engineering, 04.07.2019 18:10

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Answers: 3

question

Engineering, 04.07.2019 18:10

Hydraulic fluid with a sg. of 0.78 is flowing through a 1.5 in. i.d. pipe at 58 gal/min. the fluid has an absolute viscosity of 11.8 x 105 lbf-sec/ft2. is the flow laminar, turbulent or within the critical range? give both a numerical reynolds number and a term answer.

Answers: 3

question

Engineering, 04.07.2019 18:20

The characteristic roots of a dynamic system are: 1.7920 1.8160 i, -1.7920 1.8160 i, -0.4160 what is the order of this system? what are the settling time and damping ratio of the system?

Answers: 3

You know the right answer?

Alarge oak tree produces 3 tons of wood in 50 years of growth. the tree has a canopy 10 m in diamete...

Questions

question

History, 02.08.2019 02:00

Iwas enclosing my letter in its envelope when the explosion came. it was a bursting, rending, and crashing sound or roar of immense volume, largely me...

question

Mathematics, 02.08.2019 02:00

Mr. scott rented a bicycle for 6 hours on saturday and then several more hours on sunday. it cost $4 per hour to rent the bicycle, and he paid a total...

question

Mathematics, 02.08.2019 02:00

How many solutions does this system of equations have? use either the substitution method or the elimination method. x − 5y = 10 3x − 15y = 15...

question

English, 02.08.2019 02:00

To summarize a text means to succinctly state the 1 supporting details of the text in the author’s words. 2 central ideas of the text using the auth...

question

History, 02.08.2019 02:00

In 1948, the united nations created the universal declaration of human rights to a) restrict people’s basic rights. b) prosecute countries that viola...

question

English, 02.08.2019 02:00

Which is the best reason to use a diagram? a. to provide images of events described in the text b. to show scientific or technical processes c. to or...

question

Biology, 02.08.2019 02:00

Which characteristic distinguishes the five groups of fungi? number of cells reproductive structure type of hyphae method of feeding...

question

Mathematics, 02.08.2019 02:00

Arectangle is inside a circle with a 5 cm radius. what is the area of the shaded region? use 3.14 for π . enter your answer as a decimal in the box....

question

English, 02.08.2019 02:00

Complete the following sentence. the words and, but, or, and for are examples of (a) coordinating conjunctions. (b) transitional expressions. (c) con...

question

Mathematics, 02.08.2019 02:00

Use substitution to solve the system of equations. y = 4x 2x − y = −8 (4, 1) (4, 16) (2, −8) (−8, −2)...

question

English, 02.08.2019 02:00

Which sentence is written correctly? a. my appointment is scheduled for monday, july 4. b. my appointment is scheduled for monday, july 4. c. my appo...

question

Biology, 02.08.2019 02:00

When you look at the sun through a filtered telescope, you notice a blotchy appearance. the part of the sun that you are observing is the this appear...

question

English, 02.08.2019 02:00

Which statement about the strange case of dr. jekyll and mr. hyde is correct? a) dr. jekyll’s struggle between good and evil is resolved with the de...

question

Mathematics, 02.08.2019 02:00

Find the difference x+1/x-1-x-8/x-1...

question

History, 02.08.2019 02:00

Which state had a larger latino population in 2000—georgia or texas? a. georgia b. texas...

question

Mathematics, 02.08.2019 02:00

What is the area of this polygon? enter your answer in the box. units²

question

Physics, 02.08.2019 02:00

How does size influence the appearance of a star? give an example in your response. plz 30 pointzz...

question

Mathematics, 02.08.2019 02:00

Addyson made a grilled cheese sandwich and cut it in half. after she cut it in half the diagonal cut was 5 inches. it was 4 inches tall. how wide was...

question

Arts, 02.08.2019 02:00

Why is the pointed arch seen i gothic architecture structurally more stable than the rounded arch used earlier...

question

Mathematics, 02.08.2019 02:00

Consider two functions: g(x)=20(1.5)x and the function f(x) shown in the table. which statements are true? select each correct answer. f(1) is less...

More questions: Engineering Another questions

Questions on the website: 13722367