Answer:
Work = Force × distance
= m × g × d
= 12 × 9.8 × 0.5
= 58.8 N
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Complete Question
The complete question is shown on the first uploaded image
Answer:
The strain experienced by the specimen is 0.00116 which is option A
Explanation:
The explanation is shown on the second uploaded image
The correct answer is 9.45 kg.
The formula for calculating the density of an object is expressed as:
Density = mass / volume
Given :
Density = 150kg/m³
Volume of the sphere = negligible
r is the radius = 50/2 = 25cm = 0.25m
We can find the volume of the Styrofoam sphere by
=(4/3)πr³
Volume (V) = (4/3)*π*(0.25)³
Volume = 0.063 cm³
Now let us find the required mass:
Mass = density * volume
Mass = 150 * 0.063
Mass = 9.45 kg
Therefore, the maximum mass that can hang without sinking from a 50.0 cm -diameter Styrofoam sphere in water is 9.45 kg.
To learn more about mass, refer: brainly.com/question/18386490
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You don't say what the insulators are insulating from ... heat or electricity.
Here are some of each:
Heat insulators:
-- Air (between the inner and outer bottles of a thermos bottle)
-- Wood (around the handle of a frying pan)
-- Cloth (an oven mitt)
Electrical insulators:
-- rubber
-- plastic
-- wood
-- cloth
-- air
Answer:
Keepers also have a useful safety function, as they stop external metal being attracted to the magnet. ... A keeper for low-coercivity magnets is just a strong permanent magnet that keeps all the domains pointing the same way and realigns those that may have gone astray.
