What do you call a molecule composed of two atoms of the same element?

A scientific law is an established principle that explains a phenomenon or behavior in the natural world. It is a concise statement that summarizes the results of many observations and experiments and is widely accepted as true because it has been confirmed over and over again.

For such more question on Newton's laws of motion

https://brainly.com/question/28171613

#SPJ8

With the "twist-out" style, knots can be opened and released to create wavy and fuller loose curls.

The twist-out style is a popular hairstyling technique commonly used to create wavy or curly hair textures. It involves twisting sections of hair together and allowing them to set before unraveling the twists. The resulting hairstyle is characterized by defined and elongated curls or waves.

To achieve a twist-out, the hair is typically divided into small sections, and each section is twisted from the roots to the ends. The twists are then secured, and the hair is left to dry or set for a certain period.

Once the twists are released, the hair will have a wavy or curly pattern, depending on the size of the twists and the hair's natural texture.

By using the twist-out method, knots are opened and released, allowing the hair to spring back into its natural or manipulated curl pattern.

Therefore, this technique gives the hair more volume, texture, and movement, resulting in wavy and fuller loose curls.

To know more about volume, refer here:

https://brainly.com/question/28058531#

#SPJ4

Answer:

Explanation:

2. 330.63 ft because v*t=d and 3.09*107=330.63

3. 4.2 because 10/2.4=4.1666

4. 130 miles because 2 hours times 65mph= 130

5. 62.3 seconds because 480000/7700=62.33766233

8. 60 meters, because 0.5 *120 (because 2 minutes converted to seconds is 120) is equal to 60.

The time period between the lightning and thunder is approximately 12.84 seconds.

Speed = Distance x Time

The time period between the lightning and thunder can be calculated using the formula:

time = distance / speed

First, we need to convert the distance from kilometers to meters, as the speed of sound is given in meters per second:

distance = 3.50 km = 3,500 meters

Next, we need to adjust the speed of sound for the temperature of the air. The speed of sound in air increases with temperature, so we can use the following equation to calculate the speed of sound at 30.0 °C:

speed = 331.0 m/s * sqrt(1 + (30.0 °C / 273.15 K))

where 273.15 K is the standard temperature of 0.00 °C in Kelvin.

Plugging in the values, we get:

speed = 331.0 m/s * sqrt(1 + (30.0 °C / 273.15 K))

= 331.0 m/s * sqrt(1 + 0.109)

= 351.9 m/s (rounded to one decimal place)

Now we can calculate the time period between the lightning and thunder:

time = distance / speed

= 3,500 meters / 351.9 m/s

= 9.954 seconds (rounded to three decimal places)

However, this calculation only gives us the time it takes for the sound to travel from the lightning to our location. We also need to account for the time it took for us to hear the thunder after it was produced. The speed of sound is approximately 343 m/s at normal atmospheric pressure and temperature, so we can use this value to calculate the additional time:

time = distance / speed + time delay

= 3,500 meters / 343 m/s + 0.00 seconds

= 10.204 seconds (rounded to three decimal places)

Therefore, the time period between the lightning and thunder is approximately 10.204 seconds, or about 12.84 seconds (rounded to two decimal places) if we include the delay due to the speed of sound.

To know more about  temperature, visit;

https://brainly.com/question/26866637

#SPJ11

Answer:

Explanation:

Graphic Method:

To solve this problem graphically, you will need to draw a vector diagram. Draw the two forces 10N and 20N as vectors originating from the same point, with the angle between the vectors being 60°. Then, draw the resultant vector that joins the tail of the first vector to the head of the second vector. The magnitude of the resultant vector is the magnitude of the resultant force.

Mathematical Method:

To solve this problem mathematically, you will need to use the law of cosines. The law of cosines states that:

R² = A² + B² - 2ABcosϴ

Where R is the magnitude of the resultant vector, A and B are the magnitudes of the two vectors, and ϴ is the angle between the two vectors.

So, in this case, R² = 10² + 20² - 2(10)(20)cos60°

R² = 100 + 400 - 400cos60°

R² = 500 - 200

R = √300

Therefore, the magnitude of the resultant vector is √300N.

If the two forces are now made to be inclined at 120° to each other, the law of cosines states that:

R² = A² + B² - 2ABcosϴ

Where R is the magnitude of the resultant vector, A and B are the magnitudes of the two vectors, and ϴ is the angle between the two vectors.

So, in this case, R² = 10² + 20² - 2(10)(20)cos120°

R² = 100 + 400 - 400cos120°

R² = 500 + 200

R = √700

Therefore, the magnitude of the new resultant vector is √700N.

Answer:

65

Explanation:

as i = r , so i + i = 130

so , i = 130/2 =65

Answer:

please find attached file

Explanation:

When they meet the 40-kg boy would have moved a distance of 6 m.

Apply the principle of center mass;

Take the 40 kg mass as the reference point;

X(40 kg) = (40kg x 0  + 60kg x 10 m)/(40 kg + 60 kg)

X(40 kg) = (600)/(100)

X(40 kg) = 6 m

Thus, when they meet the 40-kg boy would have moved a distance of 6 m.

Learn more about distance here: https://brainly.com/question/2854969

#SPJ1

12-lead ECG, the "LL" and "RL" electrodes should be placed on the thighs or ankles.

When getting ready to get a 12-lead ECG, the "LL" and "RL" The "LL" and "RL" electrodes should be put on the thighs or ankles when getting ready for a 12-lead ECG.

The V1 and V2 electrodes should be positioned on either side of the sternum in order to get a 12-lead ECG. If the EMT has received permission from medical control, they may provide aspirin to the patient.

The typical ECG, also known as a 12-lead ECG since it has 12 leads, is produced using 10 electrodes. The two sets of ECG leads that make up these 12 leads are limb leads and chest leads. Precordial leads is another name for the chest leads. Near the left shoulder, position the left arm (LA) electrode.

To learn more about RL electrodes refer to:

https://brainly.com/question/28102057

#SPJ4

Answer:

differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through the air and solid materials but also through the vacuum of space.

Explanation:

This means that electromagnetic waves can travel not only through the air and solid materials but also through the vacuum of space.

For a constant volume, the pressure of a gas is directly proportional to the temperature in Kelvin is the conclusion which can be made from Gay-Lussac’s law and is denoted as option D.

This is referred to as the perpendicular force applied on a body per unit area and the unit is Pascal.

Gay-Lussac was a scientist who discovered through numerous experiments and observations that at a constant volume, the pressure of a gas is directly proportional to the temperature in Kelvin.

This is denoted as the following equation below:

P ∝ T

P = kT where p is pressure, k is constant and t is temperature.

Read more about Gay-Lussac’s law here https://brainly.com/question/12050285

#SPJ1

The options are:

Electromagnetic Wave - oscillating electric charge

Radar - tracking storms

c            - Velocity of light

Photon - behaves as a particle

infrared waves - TV remote control

Frequency - Wavelength

ultraviolet waves - sun burn

Microwaves - Cooking Food

CRT - Television

pager - unique identification number

moving electric field - moving magnetic field

carrier wave - frequency modulation

In physics, electromagnetic radiation (EMR) is made up of electromagnetic (EM) field waves that travel across space carrying velocity and electromagnetic radiant energy. Radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays are all examples of electromagnetic radiation.

To know more about microwave :

https://brainly.com/question/15708046

#SPJ1.

All the non zero digits are significant and 9*10^-1 has 3 significant figures. Leading zeros and succeeding zeros are not significant.

Rules to find significant digits. 0.175 has 3 significant figures, 1930000 has 3 significant figures, 0.045 has 2 significant figures. Zeros after decimals are significant, provided they must have a significant figure(s) on the left side of them. Example-5.730 has 4 significant figures.

40.038 has 5 significant figures. All constants or exponential nos. and trigonometric angles are not significant. Example- 50° has no significant figure. Speed of light-3*10^8 m/s have no significant figures. 14*10^7 have 2 significant figures.

Zeros between two significant figures are significant. Example-40.0 have 3 significant figures. All amounts like 4 apples ,7 children have infinite no.of significant figures.

To know more about significant figures here

https://brainly.com/question/11566364

#SPJ4

The new contact area needed in order to reduce the pressure by 45% is 3.38 x 10⁻⁵ m².

The mass of the person is 110 Kg.

The area of the foot is 2cm²

2cm² = 2 x 10⁻⁴ m².

The force on the foot is,

F = 110 x 10

F = 1100 N.

Let us say that the pressure on the foot is P.

The pressure needed to be reduced in 45%.

So, the new pressure is 65% of P.

We can write,

P' = 65%P

P' = (65 x 1100)/(100 x 2 x 10⁻⁴)

A' is the new area,

P' = 3.25 x 10⁶ Pa.

The force is same,

P' = 1100/A'

A' is the area of the shoe.

3.25 x 10⁶ = 1100/A'

A' = 3.38 x 10⁻⁵ m².

Hence, the area of the custom shoe is 3.38 x 10⁻⁵ m².

To know more about Pressure, visit,

https://brainly.com/question/28012687

#SPJ4

Answer:

v = -\frac{n \ m}{M} \ v'

for the man to return to the ship he must throw the balls in the opposite direction of the ship

Explanation:

For this exercise we can use the conservation of momentum. Let's form a system made up of man and baseballs.

Initial instant. Before throwing the balls

     p₀ = 0

Final moment. After throwing the balls

     \(p_{f}\) = M v + n m v '

where M is the mass of the man, m is the mass of each ball and n is the number of balls , v isthe speed man and v' is the speed ball

Since the forces are internal, the momentum of the system is conserved

     p₀ = p_{f}

      0 = M v + n m v ’

      \(v =- \frac{n \ m}{M} \ v'\)

If we analyze this expression, for the man to return to the ship he must throw the balls in the opposite direction of the ship

Answer:

because the density of iron nail is more tha n density of water but the density of ship made iron steel is less than the density of water

During conversations with astronauts on the lunar surface, there was a unique phenomenon known as the "echo effect." This effect occurred due to the absence of atmosphere on the Moon, which resulted in sound waves behaving differently compared to on Earth.

On Earth, sound waves travel through the air and bounce off objects, creating echoes. However, on the Moon, there is no air or atmosphere to carry sound waves. As a result, when an earthbound person communicated with an astronaut on the lunar surface, their voice would seem loud and clear to the astronaut.

The absence of atmospheric attenuation on the Moon allowed the sound waves to travel directly to the astronaut's ears without any loss of energy. This made the earthbound person's voice appear louder in the astronaut's space helmet.

Furthermore, the lack of atmosphere also meant that there were no obstacles or objects for the sound waves to bounce off of, which eliminated any potential echoes. This gave conversations on the lunar surface a unique characteristic, where the astronaut would only hear the direct transmission of the earthbound person's voice without any reverberations.

In conclusion, conversations with astronauts on the lunar surface were characterized by a kind of echo in which the earthbound person's voice was loud in the astronaut's space helmet due to the absence of atmosphere on the Moon. This lack of atmospheric attenuation allowed for clear and direct communication between the two parties.

To know more about energy visit:

https://brainly.com/question/1932868

#SPJ11

A contact lens with a +3.014 diopters power will enable a farsighted woman with a near point of 70.0 cm to see objects clearly at a distance of 27.3 cm.

We have do = 23cm and di = -75cm

So 1/f = 1/do + 1/di = 1/23 + 1/(-75) = .03014

So f = 1/.03014=33.17

So power = 1/0.3317 = +3.014Diopters (converging lens)

In optics, a diopter represents the magnifying power of a lens or lens system. The power of a lens is proportional to unity (one) divided by the focal length (see lens), so the power of a lens in diopters is mathematically equal to 1 meter is divided by the focal length. A healthy human eye can concentrate on an object or picture that is 1/40 of a meter away with an optical power of roughly 40 diopters. A average young person's eye has an additional 20 diopters of adjustment.

Learn more about Diopters here:

https://brainly.com/question/13088549

#SPJ4

Answer:

This is what the Ecological Footprint does: It measures the biologically productive area needed to provide for everything that people demand from nature: fruits and vegetables, meat, fish, wood, cotton and other fibres, as well as absorption of carbon dioxide from fossil fuel burning and space for buildings and roads.

Why it's useful:

Ecological footprint (EF), measure of the demands made by a person or group of people on global natural resources. It has become one of the most widely used measures of humanity’s effect upon the environment and has been used to highlight both the apparent unsustainability of current practices and the inequalities in resource consumption between and within countries.

Answer:20Hz to 20000Hz

Explanation:

Humans can detect sounds in a frequency range from about 20 Hz to 20 kHz.

The organelle that is large in plant cells but small or absent in animal cells is A large vacuole. So, option C. is correct.

Plant cells typically have a single, large central vacuole, which takes up a significant portion of the cell's volume. This central vacuole serves various functions, such as storing nutrients, and waste materials, and maintaining turgor pressure (cellular rigidity) in the cell. The presence of a large central vacuole allows plant cells to maintain their shape and structure.

In contrast, animal cells usually have smaller vacuoles or, in some cases, do not have vacuoles at all. Animal cells rely on other organelles for the functions performed by the large vacuole in plant cells.

It is important to note that option D includes B. A cell wall is not considered an organelle but rather a structural component that is present in plant cells and absent in animal cells.

The cell wall provides extra support and protection for plant cells, made primarily of cellulose. This characteristic is not directly related to the size difference of the organelle in question between plant and animal cells.
So, option C. is correct.

Learn more about organelle:

https://brainly.com/question/16601148

#SPJ11

Answer:

Answer choice B!

Explanation:

Study Island work

Answer:A

I DID THIS ON STUDYILSLAND

Faraday's Electromagnetic Lab (2.07) is an interactive simulation that is offered on the PHET interactive website. It allows you to see the effects of changing variables in Faraday's law of induction.

The simulation includes a number of components such as bar magnets, loops, pickup coils, electromagnets, and transformers among others. The various tools in the simulation include the Field Meter, Compass, and Field. The loops option allows you to select the number of loops for the pickup coil, which can be set between 2 and 100. The Loop Area option allows you to change the size of the loops as a percentage of the maximum size.

The Show Field option allows you to visualize the magnetic field around the components in the simulation. The Show Compass option shows you the direction of the magnetic field. The Show Electrons option allows you to see the motion of the electrons in the pickup coil.

The DC and AC Current Source options allow you to change the type of current that is flowing through the components. The content is loaded and the generator starts as soon as you start the simulation. The pickup coil indicator shows the amount of current that is being generated in the pickup coil. The Electromagnet option allows you to create an electromagnet that can attract or repel the bar magnet. The transformer option allows you to change the number of coils on the primary and secondary sides of the transformer.

In summary, Faraday's Electromagnetic Lab (2.07) is a great tool for learning about Faraday's law of induction and how it works. The various components and tools in the simulation allow you to experiment with different variables and see how they affect the outcome.

Learn more about PHET Visit : brainly.com/question/30886430

#SPJ11

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

density = 0.17 g/cm³

1 mL = 1 cm³

12 mL = 12 cm³

So we have

mass = 0.17 × 12

We have the final answer as

Hope this helps you

One consequence of Newton's third law of motion is that all actions have equal and opposite reactions. (C)

In fact, that's pretty much what the law itself says in so many words.

Answer:

Its C All actions have equal and opposite reactions

Explanation:

Ive done this before

The weight of a body with mass, m can be found by multiplying its mass with the gravitational force, g. The acceleration of the box is 7.5 m/s².

The formula is given by W = mg. A box with a mass of 100.0 kg slides down a ramp with a 50-degree angle. Here, we need to find the weight of the box. Therefore, we will use the formula for weight, which is W = mg,

where m is mass and

g is acceleration due to gravity.

Substituting the given values in the above formula we get, W = (100.0 kg) × (9.8 m/s²) = 980.0 N

The weight of the box is 980 N.

Normal force: The normal force is equal and opposite to the weight of the box, N. Therefore, the value of the normal force will also be 980 N.

Acceleration: We can use the formula a = g × sinθ to find the acceleration of the box. Here,

g is acceleration due to gravity, and θ is the angle of inclination.

Substituting the given values in the above formula we get, a = (9.8 m/s²) × sin(50°) = 7.5 m/s².

To know more about gravitational force visit :

https://brainly.com/question/32609171

#SPJ11

Answer:

Violations. A violation occurs when a player violates the rules in a manner which does not result in physical contact ( e.g. throwing a pass during an approach to the goal line; illegal guarding position by the marker; not establishing a pivot foot after carrying the disc in from out-of-bounds, etc.)

The object of Ultimate Frisbee is to gain points by scoring goals. The disc may only be passed, and a goal is scored when a player successfully passes the disc to a teammate in the end zone which that team is attacking. The team with the most points at the end of the game is declared the winner.

Explanation:

Vert (Vertical) Stack – The most common offensive play in Ultimate Frisbee. The Mailman – An intense offensive tactical maneuver to guarantee a gain of at least 70% of the field. TurboDisc – Can be added to almost any play to ensure max effectiveness.

If contact occurs and the thrower drops the disc, the count stops until the thrower picks up the disc and continues with play. The defensive player will have to back up 5 yards (15 feet) to allow a free throw from the offensive player.

The electric field exerted by a point charge is given by:

where q is the charge and r is the distance to the point where we want to calculate the electric field.

In this case we have three charges with the following properties:

Now, the total electric field on a point is the addition of all the charges; in this case we want the net field to be zero. Then we have:

Now, since the last equation does not have a real solution this means that this distribution of charges will not exert a zero electric field on the origin.

Therefore, there's no possible distance for the field to be zero in this charge configuration

how much mass or speed will the object have