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4 years ago

How is mechanical energy calculated?

Physics

2 answers:

Nutka1998 [239]4 years ago

3 0

Answer: [A] "by adding potential energy and kinetic energy"

Explanation: Mechanical Energy = Potential Energy + Kinetic Energy

ankoles [38]4 years ago

3 0

Answer: d

Explanation:

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The field inside a charged parallel-plate capacitor is __________.

Bess [88]

Uniform. A parallel plate capacitor is a simple arrangement of electrodes and dielectric to form a capacitor. Here two parallel conductive plates are used as electrodes with a medium or dielectric in between them. Charge separation in a parallel-plate capacitor causes an internal electric field, which is uniform.

5 0

4 years ago

Read 2 more answers

10 turns of wire are closely wound around a pencil as shown in the figure. when measured using a scale as shown, the length of t

Mila [183]

Answer:

a. The thickness of the wire is 2.5 mm.

b. The wire is 0.25 cm thick.

Explanation:

Number of turns of the wire = 10

The length of total turns = 25 mm

a. The thickness of the wire can be determined by;

thickness of the wire = $\frac{length of total turns}{number of turns}$

= $\frac{25}{10}$

= 2.5 mm

Therefore, the wire is 2.5 mm thick.

b. To determine the thickness of the wire in centimetre;

10 mm = 1 cm

So that,

2.5 mm = x

x = $\frac{2.5}{10}$

= 0.25 cm

The wire is 0.25 cm thick.

8 0

3 years ago

A truck drives with a constant linear speed v_iv i v, start subscript, i, end subscript down a road with two curves. The first

Alex

Answer:

Explanation:

Centripetal acceleration is given by

$a = \dfrac{v^2}{r}$

where v is the linear velocity and r is the radius of the curve.

Let the centripetal acceleration on the curve of radius R be $a_1$ .

Then

$a_1 = \dfrac{v_i^2}{R}$

Let the centripetal acceleration on the curve of radius 3R be $a_2$ .

Then

$a_2 = \dfrac{v_i^2}{3R} = \dfrac{1}{3}\dfrac{v_i^2}{R} = \dfrac{1}{3}a_1$

Here, we see that the acceleration decreases by a factor of 3.

7 0

3 years ago

Which compound uses the oxidation numbers to write the chemical formula?

pantera1 [17]

Inorganic chemical compounds

Explanation:

Inorganic chemical compounds employ the use of oxidation numbers of atoms to write their chemical formula.

The oxidation number is the formal charge assigned assigned to an atom present in a molecule or formula unit or ion based on some rules.
Knowledge of this number is used in writing the formulae of inorganic compounds.
These compounds forms by the exchange of certain small whole numbers by atoms or groups of atoms.
The combining power usually correspond to the number of electrons usually lost or gained or shared by atoms of elements during chemical combinations or the number of positive or negative charges carried by ions.

For example:

A B

combining power(Valency): X Y

Exchange of valencies Y X

Molecular formula of compound A $_{y}$ Bₓ