Answer:
a. Initial speed is zero from a crouching position...
b... Mass of body * 9.8
Explanation:
It’s coming in contact with more air molecules than I would if it was in a ball because there is less surface area
The idea of a mechanical device, like a wind up toy, is to take take advantage of the laws of thermodynamics in order to perform some kind of work.
In the case of a wind up toy, mechanical energy (winding the handle) is stored as potential energy in an internal spring. This creates a state of 'low entropy' in the toy since work was done to concentrate energy in the spring.
The natural tendency of the spring is to unwind and distribute it's energy in a more disordered fashion, thereby increasing entropy and following the laws of thermodynamics.
The mechanism inside the toy is engineered to focus the flow of energy being delivered by the spring into a specific mechanical motion (Kinetic Energy), then sound (air pressure) and finally heat (thermal energy).
True, the electric field produced by a uniform, infinite plane of charge does not depend on the distance from the plane.
<h3>
What is electric field?</h3>
Electric field is the region of space at which electric force is felt.
E = kq/r²
where;
- r is the distance of the charge
at infinite plane, r → ∞, and E = 0
Thus, the electric field produced by a uniform, infinite plane of charge does not depend on the distance from the plane.
Learn more about electric field here: brainly.com/question/14372859
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