The circuit is working, and all three bulbs are lit. If a switch at A is opened,
what will happen to the circuit?
A
B
Cc
O
A. Bulbs 1 and 2 will go out, but bulb 3 will remain lit.
O
B. Bulb 1 will go out, but bulbs 2 and 3 will remain lit.
O
c. All three bulbs will stay lit.
O
D. All three bulbs will go out

Answer:

Gold

mica

halite

gypsum

copper

Explanation:

Gold:it is used in dentistry

mica: its is used in putting sparkle in rock

halite:its used in seasoning food and softening water

gypsum: it is used as fertilizer and road construction

copper: it is used for jewelry and currency

Answer: Refracrion

Explanation: it is the bending of light

Answer:

B

Explanation:

On the electromagnetic spectrum, visible light is positioned between infrared and ultraviolet. Hence, option (B) is correct.

The electromagnetic spectrum is a range of frequencies, wavelengths, and photon energies that includes wavelengths that range from a few kilometers to a small portion of the size of an atomic nucleus in the spectrum of electromagnetic waves.

Frequencies in this range range from below 1 hertz to above 1025 Hz. In a vacuum, electromagnetic waves typically move at speeds close to those of light. They operate at a variety of wavelengths, frequencies, and photon intensities, though.

The electromagnetic spectrum is made up of a range of all electromagnetic radiation and a number of subranges, or "portions," that fall within that range. These can also be categorized as ultraviolet, visible, or infrared radiation.

In the electromagnetic spectrum, visible light lies between infrared and ultraviolet radiation. Its wavelength ranges from 380 nanometers to 740 nanometers, and its frequencies range from 4 10¹⁴ Hz to 8 × 10¹⁴ hertz (Hz).

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Answer:

0.018kg

Explanation:

Q=mlf

m=?,Lf=334000J/kg,Q=5848J

5848=mx334000

5848=334000m

divide both sides by 334000

334000m/334000=5848/334000

m=0.018kg

For this case we have that by definition, the frequency is given by the number of cycles that are formed in a second.

According to the statement we have:

Cycles: 30

Time: 1 minute = 60 seconds

Thus, the frequency is:

[tex]f = \frac {30} {60} = \frac {3} {6} = \frac {1} {2} = 0.5[/tex]

Thus, the frequency of the pendulum is[tex]0.5 \ Hz[/tex]

Answer:

[tex]0.5 \ Hz[/tex]

Answer:

The left to right motion causes a pulse in the coils and it doesn't look like the wave is moving but it is a longitudinal wave. Moving it side to side causes a "snake like" motion of the slinky, which is a transverse wave

Explanation:

Answer:

The answer is C.

Explanation:

Cells are the smallest organisms and makes up all living thing or being. The tissues are made of cells. The organs are made of tissues. The organ systems are made of organs. Therefore the order is C. cells, tissues, organs, and organ systems.

The option which is not practical application of gravity is The moon has no gravity because it has no atmosphere. The correct option is option B.

Practical Application of gravity is the use of gravity in ways that beneficial to man and earth. Gravity is one of the most important physical features of the earth and major contribution to our existence.

Examples of practical application of gravity

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Answer:

1000 N

Explanation:

The Electric Force between two charged particles with charges q1 and q2 respectively, separated by a distance, d, is given as:

F = (k * q1 * q2) / d²

Where k = Coulombs constant

From the question:

Charge of first particle = charge of second particle = q = +1 C

Distance between both particles, d = 3000 m

Therefore, Electric Force is:

F = (9 * 10^9 * 1 * 1) / (3000²)

F = (9 * 10^9) / (9 * 10^6)

F = 1 * 10^3 N = 1000 N

The electric force between both charges is 1000 N.

Answer:

1000 N

Explanation:

The electric force between two charges is given as

F = kq'q/r²......................... Equation 1

Where F = electric force between the charges, q' = magnitude of the first charge, q = magnitude of the second charge, r = distance between the charges, k = coulombs constant

Given: q' = q = 1 C, r = 3000 m, k = 9×10⁹ Nm²/kg²

Substitute into equation 2

F = 1²×(9×10⁹)/3000²

F = 1000 N.

Hence the magnitude of the electric force between them = 1000 N

Answer:

Explanation:

Weight of the ladder is 355N

WL = 355N

The weight of the ladder acts at center of the ladder I.e at 4m from the bottom

Weight of firefighters is 870N

Wf = 870N

The fire fighter is at 6.3m from the bottom of the ladder.

N1 is the normal force exerted  by the wall

N2 is the normal force exerted  by the ground

Using Newton law

Check attachment

ΣFy = 0, since body is in equilibrium

N₂ - WL - Wf = 0

N₂ = WL + Wf

N₂ = 870 + 355

N₂ = 1225 N

This the normal force exerted by the ground on the wall.

Now to get N₁, let take moment about point A

So, before we take the moment we need to make sure that the forces are perpendicular to the plane(ladder), we need to resolve the weight of the ladder, firefighter and the normal of the wall to be perpendicular to the plane.

ΣMa = 0

Clockwise moment is equal to anti-clockwise moment

Moment Is the produce of force and perpendicular distance.

M = F×r

So,

WL•Cos50 × 4 + Wf•Cos50 × 6.3 —N₁•Sin50 × 8 = 0

355•Cos50 × 4 + 870•Cos50 × 6.3 =

N₁•Sin50 × 8

1825.52 + 3523.12 = 6.13N₁

6.13N₁ = 5348.64

N₁ = 5348.64/6.13

N₁ = 872.54 N.

The normal force exerted by the wall is 872.54N

Answer:

I think its transverse

Explanation:

Answer:

5*10^25 atoms of carbon

Explanation:

Check from the periodic table:

M(carbon) = 12.01 g/mol

Convert kg into g:

1 kg = 1000 g

Calculate the number of moles of carbon:

n(carbon) = (1000 g) ÷ (12.01 g/mol) = 83.26 mol

Convert moles into number of particles:

#(carbon) = n × NA = 83.26 mol × 6*10^23

= 5*10^25 particles

Note: NA represents the Avogadro's Number, which has the value 6.02*10^23 particles/mol.

Answer:

Light includes ALL of these answers: Radio/Microwaves. Visible light and X-rays/Gamma rays.

Answer:

The answer is A

Explanation:

The school bus has the most mass so it would need the most energy and force to set it into motion

hope this helps ;)

A. a school bus is the object that would require the most amount of energy, or force, to set it into motion.

Hence, A. school bus is the correct option.

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Answer: your welcome

Explanation:

Answer:

a: river

B: tributary

Explanation:

Answer:

it goes down

Explanation:

Answer:

The kinetic energy of the particles are being reduced.

Answer:

D) Weed whacker full of grass

Explanation: Its D) because the weed wacker full of grass is stil and not moving therefore making it potential energy.

The magnitude would be 10-9m

Based on scientific information and records, the magnitude of a nanometer is equal to: C. 10⁻⁹ m.

Measurement refers to a process through which the size, magnitude or other physical quantities associated with an object is taken, especially for the purpose of a scientific research (experiment).

In the metric system, a nanometer can be defined as a measure of length such as:

In conclusion, a nanometer is one billionth (10⁻⁹ m) of a meter.

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Answer:

B. Bend away from each other

Explanation:

Sample C has the lowest kinetic energy value and, assuming the same conditions for all samples, it would also have the lowest temperature. Therefore, option C is correct

The image contains a list of samples with their corresponding average kinetic energies of molecules in joules. To determine which sample has the lowest temperature, we would need to apply the principle that, at a given temperature, the average kinetic energy of molecules is proportional to the temperature itself. This is described by the equation:

[tex]\[ KE_{avg} = \frac{3}{2} k T \][/tex]

where [tex]\( KE_{avg} \)[/tex] is the average kinetic energy, [tex]\( k \)[/tex] is the Boltzmann constant [tex](\(1.38 \times 10^{-23} \text{ J/K} \))[/tex], and [tex]\( T \)[/tex] is the temperature in kelvins.

However, without additional information about the specific gases or the number of molecules involved, we cannot calculate the exact temperature from the average kinetic energy. Typically, the kinetic energy of a sample is directly proportional to its temperature (in an ideal gas scenario). Therefore, the sample with the lowest average kinetic energy would also have the lowest temperature.

Based on the average kinetic energy values provided in the image, we can conclude that:

- Sample A has [tex]\( 1.50 \times 10^4 \)[/tex] J

- Sample B has [tex]\( 1.73 \times 10^5 \)[/tex] J

- Sample C has [tex]\( 2.73 \times 10^3 \)[/tex] J

- Sample D has [tex]\( 5.06 \times 10^4 \)[/tex] J

Sample C has the lowest kinetic energy value and, assuming the same conditions for all samples, it would also have the lowest temperature.

Answer: D

Explanation:

Answer:

the answer is b

Explanation:

when there going against each other it would have to break, I hope this helps.

Answer:

Your answer is SOMATIC :)

The somatic nervous system is the part of the peripheral nervous system associated with the voluntary control of body movements and skeletal muscles.

The voluntary skeletal muscles that should be controlled represent the function of the somatic nervous system.

The somatic nervous system refers to the system where it is the portion of the nervous system i.e. peripheral and should be associated with the controlling of the movement of the bonds through the skeletal muscles usage. Therefore, we can say that the option b is correct.

And, the rest of the options are wrong.

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Explanation:

V=IR

V=0.3x20

V=6

thus to find the number of 1.5v batteries you divide 6 by 1.5

6÷1.5=4

thus four 1.5v batteries are needed

Answer:

car B

Explanation:

K.E=1/2mv(squared)

K.E=1/2x10000x40x40

K.E=5000x1600

K.E=8000000J

convert to KJ

K.E=8000000/1000

K.E=8000KJ

Explanation:

Answer:

True!

Explanation:

Apples, potatoes and onions will all taste the same if somehow you were to block your sense of smell (plug your nose).

Answer:

A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position.

Explanation:

The statement that is not true about fossils is that they give us clues about the ground they are formed in. Option b

Among the given options, the statement that is NOT true about fossils is that fossils give us clues about the ground they are formed in. Fossils indeed give us valuable information about past climates, geological surface changes, and the evolutionary changes in organisms over time. However, the composition or characteristics of the ground in which they're formed isn't typically information that fossils can provide.

Fossils serve as a rich source of data for paleontologists and geologists, often providing insights into major geological events and the past climates on Earth. The fossil record, which consists of all the fossils found on Earth, maps out how life forms have changed over the millennia and reflects the history of life on our planet. Option b

Answer:

The slope of the graph is what you need. That tells you the speed not the velocity. In order to find the velocity you would also need to know the direction of the motion.

Answer:

Slope

Explanation:

Rise over Run