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A foam plastic of density
A foam plastic ( sg = 0.58 ) is to be used as a life preserver. What volume of plastic must be used if it is to keep 20 % (by
1 answer
asked by
ynna
802 views
A foam plastic of density 580kg / m ^ 3 is to be used as life jacket on river pra.what volume of plastic must be used if it is
1 answer
asked by
Micheal
360 views
A foam plastic of density of 0.58g/cm^3 is to be used as a life jacket.What volume of the plastic must be used if it is to keep
2 answers
asked by
ceasar3
3,203 views
Which type of surface is best for absorbing sound waves?(1 point)
Responses rock rock foam foam plastic plastic glass
1 answer
asked by
tyler
38 views
A helmet has an open cell polystyrene foam liner that is designed to absorb the kinetic energy from an impact. The foam has a
5 answers
asked by
zxcv
975 views
A helmet has an open cell polystyrene foam liner that is designed to absorb the kinetic energy from an impact. The foam has a
0 answers
asked by
ssssssssssss
825 views
Setup Instructions
Make sure the foam cup is filled with hot water. It should be one-quarter full. Take the plastic cup and turn
1 answer
37 views
I have a odd question once again.
(I'm not creating a report on this) Plastic/ foam in the microwave... I have actually done this
0 answers
asked by
~christina~
528 views
Objective:
To see how different types of plastic break down in water over time. Materials Needed: 3 types of plastic samples
5 answers
41 views
To collect impressions found in dust, scientists use a device that:
A. vacuums the dust up evenly onto a clear, sticky film. B.
5 answers
121 views