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Arisa [49]
2 years ago
10

Which of the following is contained in a pull start lawnmower?

Physics
2 answers:
Nonamiya [84]2 years ago
8 0

Answer:

The correct answer is a pulley and a wheel and axle.

Explanation:

Pull start lawnmowers usually have a traction mechanism designed to turn on the axle of the crankshaft and start the lawnmower engine. Also known as a recoil starter, the traction mechanism consists of a few different parts that work together to allow the user to start the mower engine.

The casing contains the pulley, starter cord, and rewind spring, all of which work together to form the mower's traction mechanism.

The wheels allow the machine to be moved on the ground.

Have a nice day!

Ksivusya [100]2 years ago
6 0
A wheel and axle and an inclined plane.
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Only one force acts on an object. can the object have zero acceleration? can it have zero velocity? explain
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2 years ago
Determine the total electric potential energy for the charge distribution with three chargers in a straight line
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The total electric potential energy is \frac{kq_{1} q_{3} }{r_{13} } + \frac{kq_{2} q_{3} }{r_{23} } + \frac{kq_{1} q_{2} }{r_{12} }.

Electric Potential Energy of a System of Charges :

The system's electric potential energy is equal to the amount of work necessary to create a system of charges by guiding them toward their designated locations from infinity against the electrostatic force without accelerating them. The symbol for it is U.U=W=qV. Electrostatic fields are conservative, therefore the work is independent of the path.

Assume three charges q₁ , q₂ and q₃ bring from infinity to point P.

To bring  q₁ no work is done,

V_{p} = \frac{kq_{1} }{r_{1} }

where, V = electric potential energy.

            q = point charge.

            r = distance between any point around the charge to the point charge.

           k = Coulomb constant; k = 9.0 × 109 N.

Now bring q₂,

V_{2} = \frac{kq_{2} }{r_{2} }

Work done by q₁ ;

W_{1} = V_{p} q_{2}  = \frac{kq_{1}q_{2}  }{r_{12} }

Now bring  q₃,

V_{3} = \frac{kq_{3} }{r_{3} }

Work done on q₃ by q₁ and q₂

W= q_{3} [ V_{1} + V_{2} ]

    =\frac{kq_{1} q_{3} }{r_{13} }+ \frac{kq_{2} q_{3} }{r_{23} }  + \frac{kq_{1}q_{3}  }{r_{12} }

This work done is stored in the form of potential energy.

∴U=W= potential energy of three systems.

Learn more about electric potential energy here:

brainly.com/question/15801030

#SPJ1

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2 years ago
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