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Natali5045456 [20]
2 years ago
9

Extreme tides are

Physics
1 answer:
nasty-shy [4]2 years ago
7 0
This are tides that are very high and reach up the beach
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Definition of complex machine
ASHA 777 [7]
A complex machine is a machine made up of two or more simple machines that make your work easier to do. There are six simple machines from which all complex machines are made. They include: The lever. The inclined plane
4 0
2 years ago
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A parallel-plate capacitor has square plates that are 7.20 cm on each side and 3.40 mm apart. The space between the plates is co
Lilit [14]

Answer:

U = 218 nJ

Explanation:

We are given;

Spacing between the plates; d = 3.4 mm = 3.4 × 10^(-3) m

Voltage across the capacitor; V = 96 V

Dimension of the square plates is 7.2cm x 7.2cm.

So, Area = 7.2 × 7.2 = 51.84 cm² = 51.84 × 10^(-4) m²

Permittivity of free space; ε_o = 8.85 × 10^(-12) C²/N.m²

From relative permeability table;

Dielectric constant of Pyrex; k1 = 5.6

Dielectric constant of polystyrene; k2 = 2.56

Now, formula for capacitance of a capacitor with Dielectric is;

C = kC_o

Where, C_o = ε_o(A/d)

Since there are 2 capacitors, d will now be d/2 = (3.4 × 10^(-3))/2 m = 1.7 × 10^(-3)

Since we have 2 capacitor, thus ;

C1 = k1*ε_o*(A/d)

C1 = (5.6 × 8.85 × 10^(-12) × (51.84 × 10^(-4))/(1.7 × 10^(-3))

C1 = 1.51 × 10^(-10) F

Similarly;

C2 = (2.56 × 8.85 × 10^(-12) × (51.84 × 10^(-4))/(1.7 × 10^(-3))

C2 = 0.691 × 10^(-10) F

For capacitors in series, formula for total capacitance(Cs) is;

1/Cs = (1/C1) + (1/C2)

Simplifying this, we have;

Cs = (C1*C2)/(C1 + C2)

Plugging in the relevant values ;

Cs = (1.51 × 10^(-10)*0.691 × 10^(-10))/((1.51 × 10^(-10)) + (0.691 × 10^(-10)))

Cs = 0.474 × 10^(-10) F

The formula for energy stored in a capacitor with 2 Dielectrics is given as;

U = ½Cs*V²

So,

U = ½ × 0.474 × 10^(-10) × 96²

U = 2.18 × 10^(-7) J = 218 × 10^(-9) = 218 nJ

8 0
3 years ago
Q2. True or False? A force is a push or a pull that acts on
loris [4]
It is true ISHAHAAIWHAAOAWHSUS
6 0
3 years ago
Read 2 more answers
Which of the following properties are not likely to be the target of community redevelopment programs?
Nadya [2.5K]
B. New homes

This is because in community redevelopment programs, the focus is on rebuilding and reconstruction of damaged or unused properties. 


alright stay thicc and enjoy
7 0
3 years ago
Read 2 more answers
In Wagner’s opera Das Rheingold, the goddess Freia is ransomed for a pile of gold just tall enough and wide enough to hide her f
Vesna [10]

Answer:

Price=$7×10⁷

Explanation:

Step 1: Estimate the volume of the pile,

Step 2: Multiply it by the density to get its mass

Step 2: Then multiply the mass by the price per gram to get the total price

So

The average pile dimensions are=45.7×45×172.7

V=3.6*10^{5}cm^{3}\\  m_{g}=V_{p}=3.6*10^{5}*19.3=7*10^{6}g\\

Price=m×$10

Price=(7×10⁶)×$10

Price=$7×10⁷

5 0
2 years ago
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