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3 years ago

8

Charge q is a test charge used to measure the electric field created by a source charge Q. What happens to the magnitude of the

electric force on these charges if q is doubled?

1 answer:

Arte-miy333 [17]3 years ago

7 0

Answer:

The electric force will also double.

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True or False: The arrows on a motion map should point in the directions of motion.

slavikrds [6]

Answer:

true,true,false

Explanation:

its false because if it is equal it would show an arrow pointing left and a 20 and the same for the right

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3 years ago

Decribe what must happen inside of an aluminum can in order for it to be attracted to a positively-charged and to a negatively-c

horrorfan [7]

Answer:

The PROTONS in the can attract to the negatively charged object, so then the can becomes polarized and the ELECTRONS in the can attract the positively charged object.

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3 years ago

Geologists have evidence that the continents were once a single giant landmass that land mass eventually split apart and the ind

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3 years ago

A diver can change his rotational inertia by drawing his arms andlegs close to his body in the tuck position. After he leaves th

NeX [460]

Answer:

3.14946 rad/s

Explanation:

$I_i$ = Intial moment of inertia

$I_f$ = Final moment of inertia

$\omega_i$ = Initial angular velocity

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$\dfrac{I_f}{I_i}=\dfrac{1}{3}$

In this system the angular momentum is conserved

$L_i=L_f\\\Rightarrow I_i\omega_i=I_f\omega_f\\\Rightarrow \omega_i=\dfrac{I_f\omega_f}{I_i}\\\Rightarrow \omega_i=\dfrac{1\times \dfrac{2}{1.33}\times 2\pi}{3}\\\Rightarrow \omega_i=3.14946\ rad/s$

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3 years ago

Obtain the formula for the focal length of a lens in terms of object distance (u)

Alexxx [7]

Answer:

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2 years ago