Are fat fish more likely to have broad stripes than thin fish

Enter the general expression for an infinitesimal area element dA in spherical coordinates (r, θ, φ) using n as your outward-poi

Brut [27]

Answer:

dA can be written as shown below:

r^ dA = r^ r2 sinθdθdφ

Explanation:

r^ dA = r^ r2 sinθdθdφ

where dA is an infinitesimal area element taken on the surface of a sphere of radius, r, centered at the origin and r^ is the radial component of the radius which given the value for n.

6 0

2 years ago

6.A truck is carrying a steel beam of length 13.0 m on a freeway. An accident causes the beam to be dumped off the truck and sli

labwork [276]

The magnitude is 13.12 mV.

The steps are attached below.

<h3>How do you find the magnitude of an induced emf?</h3>

The standard SI unit of the magnetic field is the tesla (T). As an end result, we can use these equations and the equation for an induced emf due to changes in magnetic flux, ϵ=−NΔϕΔt ϵ = − N Δ ϕ Δ t, to calculate the importance of a precipitated emf in a solenoid.

The magnitude of the precipitated contemporary depends on the rate of trade of magnetic flux or the fee of reducing the magnetic area strains.

Learn more about the magnitude here: brainly.com/question/18109453

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3 0

1 year ago

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A certain parallel-plate capacitor is filled with a dielectric for which κ = 6.56. The area of each plate is 0.0830 m2, and the

mafiozo [28]

Answer:

$4.86\times 10^{-7}\ J$

Explanation:

Given:

Dielectric of the medium between the plates (k) = 6.56

Area of eac plate (A) = 0.0830 m²

Separation between the plates (d) = 1.95 mm = 0.00195 m [1 mm = 0.001 m]

Maximum electric field $(E_{max})$ = 202 kN/C = 202000 N/C [1 kN = 1000 N]

Permittivity of space (ε₀) = 8.854 × 10⁻¹² F/m

The maximum potential difference across the plates of the capacitor is given as:

$V_{max}=E_{max}d\\\\V=(202000\ N/C)(0.00195\ m)\\\\V=393.9\ V$

Now, capacitance of the capacitor is given as:

$C=\dfrac{k\epsilon_0A}{d}\\\\C=\frac{6.56\times 8.854\times 10^{-12}\ F/m\times 0.0830\ m^2}{0.00195\ m}\\\\C=2.47\times 10^{-9}\ F$

The maximum energy stored in the capacitor is given as:

$U_{max}=\frac{1}{2}CV_{max}^2\\\\U_{max}=\frac{1}{2}\times (2.47\times 10^{-9}\ F)\times 393.9\ V\\\\U_{max}=4.86\times 10^{-7}\ J$

Therefore, the maximum energy that can be stored in the capacitor is $4.86\times 10^{-7}\ J$

6 0

3 years ago

Answer True or False to each case. Coulomb's law states that the force between static charges Q1 and Q2 is K Q1Q2/r2 where K is

Julli [10]

Explanation:

The Coulomb's law states that the force acting on two charges is directly proportional to the product of charges and inversely proportional to the square of distance between them . Mathematically, it is given by

$F=k\dfrac{q_1q_2}{r^2}$

Where

k is the electrostatic constant

q₁ and q₂ are charges

r is the distance between them.

The SI unit of electric force is Newton. It can be attractive or repulsive. The attraction or repulsion depend on charges. If both charges are positive, the force is repulsive and if both are opposite charges, the force is attractive.

4 0

3 years ago

The minute and hour hands of a clock have a common axis of rotation and equal mass. The minute hand is long, thin, and uniform;

bekas [8.4K]

Answer:

b. less than

Explanation:

Moment of inertia decreases as angular velocity increases. Therefore, since the minute hand is faster than the hour hand, it is safe to say that the moment of inertia of the minute hand is less than the moment of inertia of the hour hand?

4 0

3 years ago