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2 years ago

14

A particular interaction force does work wint inside a system. the potential energy of the interaction is u. which equation rela

tes u and wint

1 answer:

larisa86 [58]2 years ago

5 0

ΔU = -Wint

Consdier the work of of interaction is W =m*g*h - equation -1

and the Potential energy U.

Final Potential energy Uf =0 , And the Initial Potential Energy Ui =m*g*h

<span>Now we will write the equation for a Change in Potential energy ΔU,</span>

ΔU = Uf - Ui

= 0-m*g*h

<span> ΔU = -m*g*h --Equation 2</span>

Now compare the both equation

<span>Wint = -ΔU</span>

we can rewrite the above equation

ΔU = -W.

<span>So our Answer is ΔU = -W. .</span>

<span> </span>

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Answer:

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2 years ago

A sailboat starts from rest and accelerates at a rate of 0.21 m/s^2 over a distance of 280 m. find the magnitude of the boat's f

sasho [114]

We use the kinematic equations,

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2 years ago

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Answer:

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<u>Now the volume of water:</u>

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As we know that the relative density is the ratio of density of the substance to the density of water.

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$\rm \rho=\frac{mass}{volume}$

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2 years ago

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Ilia_Sergeevich [38]

Answer:

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given information:

current, I = 3 A

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and direction of the magnetic force exerted on the moving charge by the current in the wire, we can use the following formula:

F = qvB sin θ

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F = magnetic force (N)

q = electric charge (C)

v = velocity (m/s)

θ = the angle between the velocity and magnetic field

to find B we use

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F = qvB sin θ

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Using the hand law, the magnetic direction is radially inward

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2 years ago