Answer:
14.001 in
Explanation:
Circumference = pi * diameter
Circumference / pi = diameter
44 inches/pi = 14.001 inches
Answer:
An object slides down an inclined plane at a constant velocity if the net force on the object is zero. We can use this fact to measure the coefficient of kinetic friction between two objects.
Explanation:
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Answer:
Echoes are the reflection of sound from relatively flat object that is far enough away that you can discern the time difference. Echoes are used to measure distance, velocity, and the shape of objects. Echoes off gratings result in an unusual pinging sound
We can't tell from the information given.
Density is the RATIO of mass to volume. So, if mass and volume both
increase but their ratio decreases, then the density decreases.
But if mass and volume both increase and their ratio also increases,
then the density increases.
Examples:
-- Start with a pile of some kind of substance.
Mass = 150 grams
Volume = 100 cm³
Density = (mass) / (volume) = (150 gm)/(100cm³) = 1.5 gm/cm³
-- Add 50 grams of mass. Mass = 200 gm.
Add 50 cm³ of volume. Volume = 150cm³.
Density = (mass) / (volume) = (200 gm)/(150 cm³) = 1.33 gm/cm³.
Density decreased.
-- To the original pile, add 100 grams of mass. Mass = 250 gm.
add 50 cm³ of volume. Volume= 150 cm³.
Density = (mass) / (volume) = (250 gm)/(150 cm³) = 1.67 gm/cm³.
Density increased.
-- To the original pile, add 60 grams of mass. Mass = 210 gm.
add 40 cm³ of volume. Volume = 140 cm³.
Density = (mass) / (volume) = (210 gm)/(140 cm³) = 1.5 gm/cm³.
Density no change.
Same as the original pile.