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Rufina [12.5K]
3 years ago
9

Please HElp!! Name five conductors and insulators

Physics
2 answers:
igor_vitrenko [27]3 years ago
4 0

Answer: 5 conductors are copper, aluminum, gold, iron, and silver and 5 insulators are glass, air, plastic, rubber, and wood.

sveta [45]3 years ago
3 0

Answer:

Conductors- copper, aluminum, gold, and silver.

Insulators- glass, air, plastic, rubber, and wood.

Explanation:

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A spinning rigid body has a rotational kinetic energy of 10 j and an angular speed of 10 s−1 . what is its rotational inertia?
boyakko [2]
Rotational kinetic energy = Iω²/2 = 10
I = rotational inertia(moment of inertia)
ω= angular speed = 10 s⁻¹

∴ 10 = I(10²)/2
∴ I = 20/10² = 0.2 kg-m²
6 0
3 years ago
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An oil has a kinematic viscosity of 1.25 × 10^-4 and a specific gravity of 0.8. What is the viscosity of this oil in SI unit of
emmainna [20.7K]
Step 1 of 3
Calculate the density of oil as follows:

Here, SG is the specific gravity and is the density of standard fluid (water).
Substitute 0.8 for SG and for .
5 0
2 years ago
What rule does static electricity follow
arsen [322]
Static electricity works when there is an imbalance of positive and negative charges, and thus causes a little spark.
7 0
3 years ago
The linear expansion coefficient of aluminium is 24 × 10^-6 (°C)^-1. When thetemperature is 33 °C, a spherical aluminium ball ha
KatRina [158]

A) Use the following formula for the linear expansion, in this case, of the diameter of the spherical ball:

d=d_o\lbrack1+\alpha(T_2-T_1)\rbrack

where,

do: initial diameter = 11.21cm

d: final diameter = ?

α: linear expansion coefficient = 24*10^6 /°C

T2: final temperature = 257°C

T1: intial temperature = 33°C

Replace the previous values of the parameters into the formula for d and simplify:

Hence, the diameter of the spherical ball is 11.27cm

B) First, consider what is the change in the radius of the sphere, as follow:

\Delta V=0.0324V_o

Now, use the following formula for the change in volume with the temperature:

\Delta V=\beta V_o\Delta T=3\alpha V_o\Delta T

where you have used the equivalence β = 3α.

Solve the equation above for the change in temperature and replace the values of the other parameters:

\Delta T=\frac{\Delta V}{3\alpha V_o}=\frac{0.0324V_o}{3(24\cdot10^{-6}(\degree C)^{-1})V}=450\degree C

Hence, the change in temperature is 450°C

6 0
1 year ago
(3.8 * 10^-2 cm) * (4.4 * 10^-2 cm) * (7.5 * 10^2 cm)
Marysya12 [62]

Answer:

1.254 cm

Explanation:

(3.8 * 10^-2 cm) = 0.038 cm

(4.4 * 10^-2 cm) = 0.044 cm

(7.5 * 10^2 cm) = 750 cm

0.038 * 0.044 * 750 = 1.254 cm

4 0
3 years ago
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