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4 years ago

6

What are 3 criteria for acceleration?

1 answer:

Temka [501]4 years ago

3 0

I don't think you mean 'criteria'. I think you mean three occurrences or
observations that indicate the presence of acceleration.

They are:

-- an object is speeding up
-- an object is slowing down
-- the direction of an object's motion is changing .

Any one of these changes is acceleration.

There's a single term that covers them all. It is "change in velocity".

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The wires leading to and from a 0.12-mm-diameter lightbulb filament are 1.5 mm in diameter. The wire to the filament carries a c

OleMash [197]

Answer:

The current in the filament is 0.81 A

Explanation:

Given :

Diameter of wire $d_{1} = 0.12 \times 10^{-3}$ m

Diameter of filament $d_{2} = 1.5 \times 10^{-3}$ m

Current density $J = 4.6 \times 10^{5} \frac{A}{m^{2} }$

From the formula of current density,

$J = \frac{I}{A}$

Where $A =$ area = $\frac{\pi d^{2} }{4}$

Current in the filament is given by,

$I = JA$

Area of filament is given by $A = \pi \frac{(1.5 \times 10^{-3} )^{2} }{4}$

$A = 1.76 \times 10^{-6}$

Put value of A in above equation,

$I = 4.6 \times 10^{5} \times 1.76 \times 10^{-6}$

$I = 0.81$ A

Therefore, current in the filament is 0.81 A

4 0

3 years ago

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kvv77 [185]

Answer:

um well

Explanation:

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deff fn [24]

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4 years ago

The atomic mass of gold is 0.197 kg/mole. how many moles are in 0.566 kg of gold.

iogann1982 [59]

Explanation:

0.566kg *(1mol/0.197 kg)= 2.87 mol gold

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