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wolverine [178]
4 years ago
12

Betty drew the life cycle of a butterfly for a science exhibition. The life cycle showed the various stages of growth before the

egg turns into a butterfly. What type of model did Betty use?
A. hypothetical
B. conceptual
C. mathematical
D. physical
Physics
1 answer:
77julia77 [94]4 years ago
7 0

Answer:

D.physical model

Explanation:

it is the evolution of butterfly

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marysya [2.9K]

D. The book will not move.

When two forces are pulling against each other with equal force, there is no movement since they will both cancel each other out.

5 0
3 years ago
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Refrigerant-134a enters the expansion valve of a refrigeration system at 160 psia as a saturated liquid and leaves at 30 psia. D
KatRina [158]

Answer:

Temperature : 92.9 F

Internal Energy change: -2.53 Btu/lbm

Explanation:

As

mh1=mh2

h1=h2

In table A-11 through 13E

p2=120Psi, h1= 41.79 Btu/lbm,

u1=41.49

So T1=90.49 F

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T2= -2.43F

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3 0
3 years ago
Four heavy elements (A, B, C, and D) will fission when bombarded by neutrons. In addition to fissioning into two smaller element
Zolol [24]

Answer:

<em>Element C will be best for a nuclear fission reaction</em>

Explanation:

<em>Nuclear fission is the splitting of the nucleus of a heavy atom by bombarding it with a nuclear particle. The reaction leads to the the atom splitting into two smaller elements and a huge amount of energy is liberated in the process.</em> For the reaction to be continuous in a chain reaction,<em> the best choice of element to use as fuel for the reaction should be the element whose nucleus also liberates a neutron particle after fission</em>. The neutron that is given off by other atoms in the reaction will then proceed to bombard other atoms of the element in the reaction, creating a cascade of fission and bombardment within the nuclear reactor.

5 0
3 years ago
PLEASE HELP!!
leva [86]
I think the answer is B
8 0
3 years ago
If 5 mm of rain falls in a 100 m2 field, what volume of rain, in m3, fell in the field?
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A=100 mm^2

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h=5.0 mm

Therefore, the volume is

V=hA=(5 mm)(100 mm^2)=500 mm^3

7 0
4 years ago
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