Bats rely on sound localization to be able to fly during the night. on a cool 20 °c summer night, a bat produces an ultrasonic s
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Answer:
(a). The local surface charge density at the point on the surface where the radius of curvature of the surface is greatest is 123.9 nC/m².
(b). The local surface charge density at the point on the surface where the radius of curvature of the surface is greatest is 654.9 nC/m².
Explanation:
Given that,
Electric field
Electric field
When the radius of curvature is greatest, the electric field at the surface will be smaller.
Where the radius of curvature is greatest
(a). We need to calculate the local surface charge density at the point on the surface
Using formula of charge density
Put the value into the formula
The local surface charge density at the point on the surface where the radius of curvature of the surface is greatest is 123.9 nC/m².
(b). We need to calculate the local surface charge density at the point on the surface where the radius of curvature of the surface is smallest
Using formula of charge density
Put the value into the formula
The local surface charge density at the point on the surface where the radius of curvature of the surface is greatest is 654.9 nC/m².
Hence, (a). The local surface charge density at the point on the surface where the radius of curvature of the surface is greatest is 123.9 nC/m².
(b). The local surface charge density at the point on the surface where the radius of curvature of the surface is greatest is 654.9 nC/m².
Answer: C) divide: distance ÷ velocity
Explanation:
The velocity equation is distance
divided by time
:
If we isolate we will have:
Hence, the correct option is C: distance divided by velocity.