1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
shtirl [24]
3 years ago
13

An example of organisms and energy crossing ecosystem boundaries.

Engineering
1 answer:
aniked [119]3 years ago
4 0
Good afternoon!

An example can be migrating salmon moving material across ecosystem boundaries.
You might be interested in
A silicon carbide plate fractured in bending when a blunt load was applied to the plate center. The distance between the fractur
anyanavicka [17]

Answer:

hello your question has some missing values below are the missing values

Mirror Radius (mm) Bending Failure Stress (MPa)

.603                                         225

.203                                         368

.162                                          442

answer : 191 mPa

Explanation:

<u>Determine the stress present at the time of fracture for the original plate</u>

Bending stress ∝ 1 / ( mirror radius )^n ------ ( 1 )

at 0.603  bending stress = 225

at 0.203  bending stress = 368

at 0.162  bending stress = 442

<u>applying equation 1   determine the value of n for several combinations</u>

 ( 225 / 368 ) = ( 0.203 / 0.603 )^n

hence : n = 0.452

also

 ( 368/442 ) = ( 0.162 / 0.203 ) ^n

hence : n = 0.821

also

( 225 / 442 ) = ( 0.162 / 0.603 ) ^n

hence : n = 0.514

Next determine the average value of n

n ( mean value ) =  ( 0.452 + 0.821 + 0.514 ) / 3 = 0.596

Calculate estimated stress present at the time of fracture for the original plate

= bending stress at x =  0.796 / bending stress at x = 0.603

= x / 225 = ( 0.603 / 0.796 ) ^ 0.596

therefore X ( stress present at the time of fracture of original plate )

     = 225 * 0.84747

     <em>=  191 mPa </em>

3 0
3 years ago
Two resistors, A and B, individually connect to a 9V battery. A student notices that resistor A is warmer than resistor B. Which
dybincka [34]

Answer:

Resistor B

Explanation:

Since resistance is the opposition to the flow of current in a circuit,

first let assume the two resistors are connected in parallel to the voltage, recall that when connection is in parallel, the different amount of current pass through the resistors depending on the value with the small resistor having  a lower resistance effect hence higher current will pass through

The energy dissipated in each resistor can be calculated as

E=\frac{1}{2}IR^{2}t.

from the formula we can conclude that the energy value will be higher for the resistor with small resistance value. hence more heating effect which will cause it to be warm.

Also when connected individually the current flow from the voltage source will pass through the resistor which when we calculate the energy dissipated, the resistor with smaller value will be higher because it will draw more current which will in turn lead to a heating effect and cause the resistor to be warm. Hence we can conclude that the resistance B has greatest resistance value.

4 0
3 years ago
Most concrete used in construction today is made with Portland cement. true or false
Marianna [84]

Answer:

True

Explanation:

Portland cement is made out of stone, sand and water.

4 0
3 years ago
Read 2 more answers
In the text box below, enter the original text you've reconstructed from the compressed version above. Make sure you use _ (unde
Ierofanga [76]

Answer:

the_big_bug_bit_the_bull_but_the_bull_bit_the_big_bug_back

Explanation:

The image used as sample is attached. The image has the representation for each symbol.

8 0
3 years ago
All rear seats in hatchback vehicle models fold down in a "split"
Goryan [66]

Answer:

ueusjw9wjqijwdnfuifjrkwjfnd

4 0
2 years ago
Other questions:
  • 6.28 A six-lane freeway (three lanes in each direction) in rolling terrain has 10-ft lanes and obstructions 4 ft from the right
    11·1 answer
  • Question 2/5
    14·1 answer
  • A teenager was pulling a prank and placed a large stuffed penguin in the middle of a roadway. A driver is traveling on this leve
    13·1 answer
  • For some transformation having kinetics that obey the Avrami equation, the parameter n is known to have a value of 1.7. If, afte
    5·2 answers
  • A bar of steel has the minimum properties Se = 40 kpsi, S = 60 kpsi, and S-80 kpsi. The bar is subjected to a steady torsional s
    6·1 answer
  • A 1-kW electric resistance heater submerged in 10-kg water is turned on and kept on for 15 min. During the process, 400 kJ of he
    12·1 answer
  • Please answwr the above question screenshot.​
    15·1 answer
  • 8.28 Water is the working fluid in an ideal Rankine cycle with superheat and reheat. Steam enters the first-stage turbine at 140
    13·1 answer
  • Find the capacitance reactance of a 0.1 micro frequency capacitor 50Hz and at 200Hz​
    9·1 answer
  • Depending on the model, all-electric vehicles can go about _______ miles on a single charge.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!