3 years ago

Steve just completed a woodworking project. now he wants to put a fine finish on his work

Physics

1 answer:

vesna_86 [32]3 years ago

8 0

Pad sander I think I’m not positive tho

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2 years ago

The electric field 14.0 cm from the surface of a copper ball of radius 2.0 cm is directed toward the ball's center and has magni

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Answer:

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3 years ago

Help meh in this question

V125BC [204]

Radius=r=R_o/2
angular velocity=w=v_o
mass=m

We know

$\boxed{\sf K.E=\dfrac{1}{2}mv^2}$

For Rotational motion

$\boxed{\sf v=r\omega}$ .

Putting value

$\\ \qquad\quad\sf{:}\dashrightarrow K.E=\dfrac{1}{2}m(r\omega)^2$

$\\ \qquad\quad\sf{:}\dashrightarrow K.E=\dfrac{1}{2}mr^2\omega^2$

$\\ \qquad\quad\sf{:}\dashrightarrow K.E=\dfrac{1}{2}m\left(\dfrac{R_o}{2}\right)^2v_o^2$

$\\ \qquad\quad\sf{:}\dashrightarrow K.E=\dfrac{1}{4}mv_o^2$

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2 years ago