A scientist claimed that fabric A is better able to resist fire than fabric B. Which option describes an experiment that will pr oduce evidence that will support or refute her claim? A. Make detailed measurements of each type of fabric to determine the thickness of fibers.
B. Hold each type of fabric over a candle flame and time how long it takes for the fabric to start to burn.
C. Combine Fabric A and Fabric B and measure the temperature at which they start to burn.
D. Measure how long it takes for a specific amount of Fabric A to burn up completely.
1 answer:
Answer:
B. Hold each type of fabric over a candle flame and time how long it takes for the fabric to start to burn.
Explanation:
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i think it D but am not real sure pls don't hate me
For the answer to the question above asking to c<span>alculate the work done to stretch an elastic string by 40cm if a force of 10N produces an extension of 4cm in it. The needed force for this is 100N of work</span>
Inches, feet, yards, meters
Answer:
The first and the last answer
P= 10m = 10 x 180 = 1800 N
work is done by the weightlifter in lifting the barbells :
A= Ph = 1800 x 1.95 = 3510 J
ok done. Thank to me :>