Do electric field line form closed loop???​

I think The coastal areas were highly polluted

Answer:

i think its greenhouse gases may increase

Explanation:

Suppose it takes at least 5 people to push a very heavy box up a 400-cm ramp. If there are actually 6 people there to help push, they could use ramp(s) = 480 cm to get the box moved.

According to newton if there is a object at rest then a physical or non physical thing acting on it and it helps him to move a bit that called the force. It is a vector quantity. It can be measured in newton, dyne.

To calculate the ramp we are using the formula,

s= s₁×(p₂/p₁)

Here we are given,

s₁= The initial length of the ramp. = 400m

p₂= The final number of people. = 6

p₁=The initial number of people. = 5

We have to calculate the final length of ramp.= s cm

Now we put the values in above equation, we get

s= s₁×(p₂/p₁)

Or, s= 400×(6/5)

Or, s=480 cm

From the above calculation we can say that, If there are actually 6 people there to help push, they could use ramp(s) = 480 cm to get the box moved.

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Answer:

λ = 300 m

Explanation:

We are given;

Speed; v = 1500 m/s

Frequency; f = 5 Hz.

Formula for wavelength is given by;

λ = v/f

Plugging in the relevant values;

λ = 1500/5

λ = 300 m

The wavelength of the wave will be 300m. The space between two consecutive troughs or crests is understood as the wavelength.

The distance between two successive troughs or crests is known as the wavelength. The peak of the wave is the highest point, while the trough is the lowest.

The wavelength is also defined as the distance between two locations in a wave that have the same oscillation phase.

The given data in the problem is;

v is the speed = 1500 m/s

f  is the frequency= 5 Hz.

λ is the wavelength of the wave=?

The relationship between the wave's wavelength, frequency, and speed is given as

wavelength = speed of wave / frequency

The wavelength of the wave is found as;

[tex]\rm \lambda= \frac{v}{f} \\\\ \rm \lambda= \frac{1500}{5} \\\\ \rm \lambda=300 \ m[/tex]

Hence the wavelength of the wave will be 300m.

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Answer:

E = 20 N/C

Explanation:

Given that,

Charge, q = 2 C

Force experience, F = 40 N

We need to find the electric field at that location.

The electric field in terms of electric force is given by :

F = qE

Where

E is the electric field

[tex]E=\dfrac{F}{q}\\\\E=\dfrac{40\ N}{2\ C}\\E=20\ N/C[/tex]

So, the electric field at that location is 20 N/C.

A. The vibrations of the fields are perpendicular to the direction in which the wave moves.

An electromagnetic wave moves through electric and magnetic fields, and the movement of the wave can be described as the vibrations of the fields being perpendicular to the direction in which the wave moves, as in option A.

Electromagnetic waves have many applications, including the transmission of information and energy, and they are also used in other technologies such as radio, television, hospitals, wireless communications, and so on. Other different rays, such as microwaves, infrared radiation, visible light, ultraviolet radiation, etc., are used in different fields, such as X-rays for imaging, etc.

Hence, an electromagnetic wave moves through electric and magnetic fields, and the movement of the wave can be described as the vibrations of the fields being perpendicular to the direction in which the wave moves, as in option A.

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Answer:

b

Explanation:

Answer:

B B*

Explanation:

B BBBBB

BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

Answer:

Net

Explanation:

Net.

The answer is net

[tex] \sf \bullet \: \theta = {60}^{ \circ} [/tex]

[tex] \sf \bullet \:Time \: of \: flight , \: t = 18.5 \: s[/tex]

[tex] \bullet \sf \: Initial \: velocity , \: u[/tex]

[tex] \bf \star\boxed{ \bf t = \dfrac{2u \: sin \theta}{g} }[/tex]

[tex] : \implies \sf 18.5 = \dfrac{2u \: sin60}{10} [/tex]

[tex] : \implies \sf \: 2u \: sin60 = 185[/tex]

[tex]: \implies \sf u = \dfrac{185 \times 2}{ \sqrt{3} \times 2 } [/tex]

[tex]: \implies \sf u = \dfrac{185}{1.73} [/tex]

[tex] \bf: \implies u = 107 \: m {s}^{ - 1} [/tex]

Answer:

I am joker if you are mad x_________-..............,,,,,,........ €£

Explanation:

container, bottles, boxes, cups

Answer:

B. Side-view mirrors on vehicles

C. Hallway safety mirrors

E. Lenses in sunglasses

Explanation:

Trust Me, Look At Attachment.

Answer:

2, 3, and 5 on Edge, 2022.

Explanation:

I had this question on Edge.

(See the attachment below.)

The rest of the answers are:

O Slide 8 - Sample Response: The image seems to be behind the mirror, but nothing is really there.

O Slide 9 - Concave

O Slide 10 - Same size

Answer:

A prism is a clear crystal that refracts light

Explanation:

For the first hour, the slope is zero.

After that, the slope is -2 miles per hour.

Solution :

c). [tex]$\vec{F}_A = $[/tex] force applied by Abe

   [tex]$\vec{F}_B = $[/tex] force applied by Barry

   [tex]$\vec{F}_E = $[/tex] force applied by Eric

   [tex]$\vec{F}_R = $[/tex] Resultant force

[tex]$\vec{F}_A $[/tex]  in the vector form can be written as :

         [tex]$\vec{F}_A = 0 \hat{i} + 60 \hat{j}$[/tex]

[tex]$\vec{F}_B $[/tex]  in the vector form can be written as :

         [tex]$\vec{F}_B = 60 \hat{i} + 0 \hat{j}$[/tex]

The resultant,

[tex]$\vec{F}_R= \vec{F}_A+\vec{F}_B $[/tex]

     [tex]$=(0 \hat i + 60 \hat j)+(60 \hat i + 0\hat j)$[/tex]

    [tex]$=60 \hat i + 60 \hat j$[/tex]

[tex]$|\vec{F}_R| = \sqrt{60^2+60^2}$[/tex]

        = 84.853 N

d). As the three forces are in equilibrium, therefore,

[tex]$|\vec F_E| = |\vec F_R|$[/tex]

[tex]$|\vec F_E| =84.853 \ N$[/tex]

e). The direction of the force exerted by Eric is exactly opposite to the direction of the resultant force.

The direction of the resultant force is :

[tex]$\theta = \tan ^{-1}\left(\frac{F_y}{F_x}\right)$[/tex]

   [tex]$ = \tan ^{-1}\left(\frac{60}{60}\right)$[/tex]

  = 45°  north east

The direction of the force E is  45° west or  45° south west.

Answer:

Density of body = 0.25g/cc

Explanation:

Given:

Volume submerged in water = 3/4

Find:

Density Of Body

Computation:

Density of body = fraction of body in liquid x density of water

Density of body = [1-3/4]1

Density of body = 0.25g/cc

Answer:

the answer is D

Explanation:

Answer:

1. M = 67,422,800,892,977.54 kg

2. r = 15 km

Explanation:

The diameter of the Comet Tempel 1, D = 9.0 km across

The speed with which the dust escapes = 1.0 m/s

1. The escape velocity, [tex]v_e[/tex], is given by the following formula

[tex]v_e = \sqrt{\dfrac{2 \cdot G \cdot M}{R} }[/tex]

Where;

G = The universal gravitational constant = 6.67430 × 10⁻¹¹ N·m²/kg²

[tex]v_e[/tex] = The escape velocity of the debris = 1.0 m/s

M = The mass of the comet from where the debris escapes

From the escape velocity equation, we have;

[tex]M = \dfrac{v_e^2 \cdot R}{2 \cdot G}[/tex]

Plugging in the values for the variables, we get the mass of the comet, 'M', as follows;

[tex]M = \dfrac{1.0^2 \times 9,000}{2 \cdot 6.67430 \times 10^{-11}} \approx 67,422,800,892,977.54 \, kg[/tex]

The mass of the comet, M ≈ 67,422,800,892,977.54 kg

2. When the debris has lost 60% of its initial kinetic energy, we have;

[tex]60\% \, K.E. = 0.6\cdot K.E. = 0.6 \times \dfrac{1}{2} \times m \times v_e^2 = \dfrac{G \cdot M \cdot m}{r}[/tex]

[tex]\therefore \, The \ distance \ of \ debris \ from \ the \ center, \, r = \dfrac{G \cdot M }{0.6 \times \dfrac{1}{2} \times v_e^2 }[/tex]

[tex]r = \dfrac{6.67430 \times 10^{-11} \times 67,422,800,892,977.54}{0.6 \times \dfrac{1}{2} \times 1^2 } = 15,000[/tex]

When the debris has lost 60% of its initial kinetic energy, the distance the debris will be from the comet's center, r = 15,000 m = 15 km

Answer:

Explanation:

By Ohms Law, Voltage = Current * Resistance

Keeping the voltage the same and doubling the resistance, the current will be halved.

So the new current = 1.5/2 = 0.75A

By using Ohms law,  the current will be 0.75A.

Ohm's law states that the current flowing through a resistance is proportional to potential difference across the resistance under constant temperature and pressure conditions. Ohm's law can be expressed as:

V =IR

Here, I = 1.50 AR = R Ωso, V = 1.50 R Now Voltage is same but resistance is doubled so new resistance is

Now, put the values of given data in ohms law formula:

2RI = 1.50 R/ 2R = 0.75A

Hence current is 0.75A

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Answer:

D

Explanation:

Answer: The dependent Variables include: Size and Types of trees.

The independent Variables include:

geographic elevations that is, valleys and the higher elevations.

Explanation:

The dependent variable simply refers to the variable a researcher tests or measures during an experiment. On the other hand, the independent variable simply refers to the variable that's controlled during an experiment.

Based on the definition above, the dependent variables include the size and the types of trees while the independent variables include the

geographic elevations that is, the valleys and the higher elevations.

Answer:

573

Explanation:

totally not stealing previous answer cause I know it's right

The wavelength of the light is 578.45 nm.

Light passing through a double slit with separation is given as

d = 2.42 × 10⁻⁵ m.

Line number m = 2

Angle θ = 2.74°

     The distance between two sound waves i.e., crest and trough is called the wavelength.

To find the wavelength, here we use the formula as,

               sin θ = Line number × λ ÷ ( distance )

By substituting all the given values,

              Sin ( 2.74° ) = 2 × λ ÷ ( 2.42 × 10⁻⁵ )

Rearranging the equation,

                 λ= (Sin ( 2.74° ) ×  ( 2.42 × 10⁻⁵ ) ) ÷ (2)

                  λ = 578.45 nm.

Thus, wavelength λ of the light is 578.45 nm.

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Answer:

No, it's a cap

Explanation:

Hats have circular or rounded edges all around but with Caps, it has a pointed round front edge

Answer:

-0.01N

Explanation:

I'm assuming you're asking for the net force of the paper.

0.01N - 0.02N = -0.01N

Answer:

A. 10023.75 Watts

B. 13.44 horse power

Explanation:

A. Determination of the power in Watts.

We'll begin by calculating the energy of the cheetah. This can be obtained as follow

Velocity (v) = 27 m/s

Mass (m) = 110 kg

Kinetic energy (KE) =?

KE = ½mv²

KE = ½ × 110 × 27²

KE = 55 × 729

KE = 40095 J

Finally, we shall determine the power in Watts. This can be obtained as follow:

Kinetic energy (KE) = 40095 J

Time (t) = 4 s

Power (P) =?

Power = Energy /time

Power = 40095 / 4

Power = 10023.75 Watts

B. Determination of the power in horse power.

Power in Watts = 10023.75 Watts

Power in horse power =?

Recall:

746 Watts = 1 hp

Therefore,

10023.75 Watts = 10023.75 / 746

10023.75 Watts = 13.44 hp

Therefore, the power in horse power is 13.44 hp

Answer:

a survey

Explanation:

how kids like the playground or they do not like it at all

Answer:

The mass of the copper is 3.00kg

Explanation:

Answer:

37.5 J

Explanation:

With work done equation: W=Fs

W=75*0.50=37.5 J

or use mgh=(75)(0.5) which is the same