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3 years ago

What is density of gold

Physics

2 answers:

Mademuasel [1]3 years ago

4 0

Answer:

the density of gold is 19.3 g/cc

ivann1987 [24]3 years ago

4 0

Answer:

Gold has density of 19.3 g/cc.

Explanation:

The density of an element is the amount of mass it has per unit volume.

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The junction rule describes the conservation of which quantity? Note that this rule applies only to circuits that are in a stead

Fed [463]

Answer:

a) Current.

Explanation:

The "junction rule" (Kirchhoff's first law) says that the value of the electric current entering any point in the circuit must be the same as the one leaving it. This comes as a consequence of the conservation of charge, the electric charge that comes in must come out (when speaking about currents, per unit time).

3 0

3 years ago

A girl starts from rest and reaches a walking speed of 1.4 m/s in 3.0 s. She walks at this speed for 6.0 s. The girl then slows

Alona [7]

Answer:

1) The girl's acceleration at time 't' is, $a=0.47$ m/s²

2) The girl's acceleration at time 't₁' is, $a_{1}=0$ m/s²

3) The girl's acceleration at time 't₂' is, $a_{2}=-0.14$ m/s²

Explanation:

Given data,

The initial walking speed of the girl, u = 0

The speed of the girl at the time 't' 3 s is, v₁ = 1.4 m/s

The time period the girl walked at the speed 1.4 m/s is, t₁ = 6 s

The girl slows down and comes to a stop during a period, t₂ = 10 s

1) The girl's acceleration at time 't'

$a=\frac{v-u}{t}$

$a=\frac{1.4-0}{3}$

$a=0.47$ m/s²

2) The girl's acceleration at time 't₁'

$a_{1} =\frac{v_{1} -v}{t_{1}}$

$a_{1}=\frac{1.4-1.4}{6}$

$a_{1}=0$ m/s²

3) The girl's acceleration at time 't₂'

$a_{2} =\frac{v_{2} -v_{1}}{t_{2}}$

$a_{2}=\frac{0-1.4}{10}$

$a_{2}=-0.14$ m/s²

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3 years ago

What are the parts of an atom

Ivenika [448]

Number three

They contain protons (positive), neutrons (negative), electrons (neutral) and all are in a nucleus which is part of an atom

7 0

3 years ago

Read 2 more answers

Suppose a vector v makes an angle theta with respect to the y axis, what could be the x and y components of the vector v

gtnhenbr [62]

If the angle between the vector and the y-axis is Θ ,
then the y-component of the vector is

(length of the vector) times cosine( Θ ),

and the x-component of the vector is

(length of the vector) times sine( Θ ) .

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3 years ago

Two equal length of wire made of the same material but of different diameters have an effective resistance of 0.8 ohm when they

nata0808 [166]

Answer:

hfdfg

Explanation:

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3 years ago