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2 years ago

What does the term equilibrium refer to?

Physics

1 answer:

snow_lady [41]2 years ago

5 0

<h3>Answer;</h3>

A) the resting position of the wave

<h3>Explanation;</h3>

A wave is a transmission of a disturbance from one point which is the source to another, and this involves transfer of energy through a material medium.
Equilibrium refers to a state of balance between opposing forces, it is a state of balance in which opposing forces cancel one another. 
When wave is in rest position its called equilibrium position of a wave. When a wave travels through a material medium, the particles in the medium are disturbed from their resting, or equilibrium positions.

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A girl is shown at position A on a swing when the seat is directly below the support bar. The seat is then at height A as shown

MrRa [10]

Answer:

1. The potential energy of the swing is the greatest at the position B.

2. As the swing moves from point B to point A, the kinetic energy is increasing.

Explanation:

Even though the syntax of the text is not completely clear, likely because it accompanies a drawing that is not included, it results clear that the posittion A is where the seat is at the lowest position, and the position B is upper.

The gravitational potential energy is directly proportional to the height of the objects with respect to some reference altitude. Thus, when the seat is at the position A the swing has the smallest potential energy and when the seat is at the position B the swing has the greatest potential energy.

Regarding the forms of energy, as the swing moves from point B to point A, it is going downward, gaining kinetic energy (speed) at the expense of the potential energy (losing altitude). When the seat passes by the position A, the kinetic energy is maximum and the potential energy is miminum. Then the seat starts to gain altitude again, losing the kinetic energy and gaining potential energy, up to it gets to the other end,

7 0

2 years ago

Read 2 more answers

The magnitude J(r) of the current density in a certain cylindrical wire is given as a function of radial distance from the cente

kipiarov [429]

Answer:

$I=68.31\times 10^{-6}\ A$

Explanation:

Given that

J(r) = Br

We know that area of small element

dA = 2 π dr

I = J A

dI = J dA

Now by putting the values

dI = B r . 2 π dr

dI= 2π Br² dr

Now by integrating above equation

$\int_{0}^{I}dI= \int_{r_1}^{r_2}2\pi Br^2 dr$

$I={2\pi B}\times \dfrac{r_2^3-r_1^3}{3}$

Given that

B= 2.35 x 10⁵ A/m³

r₁ = 2 mm

r₂ = 2+ 0.0115 mm

r₂ = 2.0115 mm

$I={2\pi B}\times \dfrac{r_2^3-r_1^3}{3}$

By putting the values

$I={2\pi \times 2.35 \times 10^5 }\times \dfrac{(2.0115\times 10^{-3})^3-(2\times 10^{-3})^3}{3}\ A$

$I=68.31\times 10^{-6}\ A$

7 0

2 years ago

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You are given 6 identical resistors, and allowed to combine them in any possible configuration to produce different equivalent r

tatyana61 [14]

Answer:your gay

Explanation:

gay

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2 years ago

What is the minimum frequency of light necessary to emit electrons from titanium via the photoelectric effect?

erma4kov [3.2K]

E = h x f 

. . . then : 

f = E / h 
f = 4,41•10^-19 / 6,62•10^-34 
f = 6,66•10^14 Hz (s^-1) 

b/ What is the wavelength of this light ? 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - 

λ = c / f 
λ = 3•10^8 / 6,66•10^14 
λ = 4,50•10^-7 m

4 0

2 years ago

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A Honda Civic travels in a straight line along a road. The car’s distance x from a stop sign is given as a function of time t by

aleksklad [387]

a) Average velocity: 2.8 m/s

b) Average velocity: 5.2 m/s

c) Average velocity: 7.6 m/s

Explanation:

The position of the car as a function of time t is given by

$x(t)=\alpha t^2 - \beta t^3$