A wax block floats in water and an iron block sink in water, compare the densities of wax, water and iron. A. Pwater > Piron > Pwax B. Piron > Pwater > Pwater > Pwax C. Pwax > Pwater > Piron

To solve this we must be knowing each and every concept related to variables. Therefore, because the evidence cards all represent variables, none of them should be deleted.

A variable is any trait, characteristic, number, or quantity that changes over time or may take on different values in different contexts (as contrast to constants, such as n, which do not change).

Magnetic pole configuration is a variable since its values can vary.

The quantity of coils is indeed a variable since it might have several numbers.

Rail material is indeed a variable since its values might vary.

The distance between the automobile and the launcher is flexible since it might take various values.

Therefore, because the evidence cards all represent variables, none of them should be deleted.

To learn more about variables, here:

https://brainly.com/question/28900893

#SPJ1

Answer:

In order to minimize the uncertainty in the period, we measured the time for the pendulum to make 20 oscillations, and divided that time by 20

Explanation:

The amplitude of sound refers to the sound’s volume or loudness.

A sound wave's amplitude measures the height of the wave. When a sound is made, the maximum displacement of the medium's vibrating particles from their mean position determines the amplitude of the sound wave. It is the separation between the wave's crest or trough and its mean location.

The relationship between loudness and sound amplitude is straightforward. A sound wave's amplitude determines how loud it will be; the larger the amplitude, the louder the sound. The sound will be weak if the amplitude is minimal.

Learn more about sound here:

https://brainly.com/question/14595927

#SPJ1

The urban legend of the car thief is an example of A Cautionary Tale.

A cautionary tale makes reference to a given tale aimed at the warning the person of some type of danger, which is generally used to alert about a given behavior and may be very useful to modify a behavior pattern in children.

Therefore, with this data, we can see that A cautionary tale is based on warning and can help to modify certain behavior in c children depending on the ability to create conscious.

Learn more about the cautionary tale here:

https://brainly.com/question/31241692

#SPJ1

Answer:

Equal

Explanation:

The law of conservation of energy states that the total momentum before and after a collision are equal

Answer:

Equal to the total momentum of the two objects after the collision.

Inductance l in this circuit could be changed the value of l would give a power factor of unity as  XL = R.

To determine what value of inductance l would give a power factor of unity in this circuit, we can use the following equation:
PF = XL/(XL+R),

where XL is the inductive reactance of the inductor and R is the resistance of the circuit.

When the power factor is equal to 1, this equation can be rewritten as XL = R.

Thus, the value of inductance l required to achieve a power factor of unity is equal to the resistance of the circuit divided by the angular frequency of the circuit.

Learn more about power factor at  brainly.com/question/10634193

#SPJ11

Answer:

The object will float better.

Explanation:

If you have basic knowledge on how it works, this question is relatively easy. Let's start by reviewing something. We already know that this object (let's assume it's a spaceship of sorts) is in orbit, meaning there is already a certain amount of gravity from Earth tugging on it. We also know that space has an effect on how this moves, so the two forces "balance" each other, allowing the object to stay at orbit rather than just drifting off. Now let's see the answers to see which makes more sense.

A. The object will stop moving.

The object can't stop moving. With gravity increasing, it would be impossible for that to happen.

B. The object will fly off into space.

This could only happen if the gravity were to decrease by a decent amount.

C. The object will smash into another object.

There is no other object mentioned in the question.

D. The object will float better.

This seems most likely as gravity would be pulling on the object a bit more, but probably not enough to bring it back to the ground. It might drop a bit lower into the exosphere.

I hope I was right and I hope this helps!

Answer: Masseter muscle

Explanation:

The masseter muscle is the most powerful muscle of mastication. It is quadrangular in shape and has two parts: deep and superficial. The entirety of the muscle lies superficially to the pterygoids and temporalis, covering them.

Answer:

Explanation:

220km/h

Light will reflect at the same angle off a smooth surface as when it first touches it. The direction of reflected light beams for a flat surface is the same. Specular reflection is what is happening here.

When light reflects off of a surface, it happens. Light will reflect at the same angle it was incident upon if the surface is glossy and smooth.

A smooth polished surface is what is referred to as a reflection when a light ray strikes it and bounces back. Surface reflection occurs when a light beam hits it and then leaves it.

To know more about Specular reflection visit :-

https://brainly.com/question/29191211

#SPJ1

Answer: The part of color that's reflected is the red that bounces off the paper.

Hope this helps you!!!

(☞ﾟヮﾟ)☞      ☜(ﾟヮﾟ☜)

Explanation

a uniformly accelerated motion is the one in which the acceleration of the particle throughout the motion is uniform,to fidn the time take we can use the formula:

Step 1

a)Let

b) now, replace

therefore, the answer is 2 seconds

I

Answer: Globular clusters with stars more than 13 billion years old contain heavy elements.

The optimal angle at the ball should be struck to keep it in the air for the longest is 90 degrees

Angles of incidence and reflection are equal when waves strike a boundary and are reflected. The angle of incidence is the angle formed by a line drawn perpendicular to the reflecting barrier and the wave's direction of motion.

The angle between a ray incident on a surface and the line perpendicular to the surface at the point of incidence is known as the angle of incidence (called as normal).

The angle of incidence is the angle formed by the incident beam and the normal. The angle of reflection is the angle formed by the reflected beam and the normal. i.e:∠i=∠r.

Longer time will be the outcome of a higher trajectory. Therefore, a 90-degree angle takes longer to complete than other angles.

To learn more about  Angle refer to:

https://brainly.com/question/25661248

#SPJ1

For working 15 minute, the energy used by the drill is 2484 KJ.

The rate at which electrical energy is carried over an electric circuit is known as electric power. The watt, or one joule per second, is the SI unit of power. Watts are subject to the same standard prefixes as other SI units: kilowatts, megawatts, and gigawatts are used.

Electric power of the circuit is = 230 × 12 Watt = 2760 Watt.

For working 15 minute, the energy used by the drill is = 2760 × 15 × 60 joule

= 2484 KJ.

Learn more about power here:

https://brainly.com/question/14379882

#SPJ1

Answer:

Since it is mentioned that the block is in equilibrium, this means the resultant force is zero, and all the forces cancel out each other.

You have to think it in a way so that, the forward force cancel out the backward force. Check the picture attached, on the forward side,

3N + 5N = 8N which cancel out the backward force of 8N

The correct order is Option B

A dwarf planet is a celestial body that orbits the sun and has enough mass to assume a roughly spherical shape under its own gravity, but is not large enough to have cleared its orbit of other debris. In other words, a dwarf planet shares some of the characteristics of a planet, but is not considered a full-fledged planet because it has not cleared its orbit of other objects.

Dwarf planets are considered part of a larger class of objects known as small solar system bodies, which also includes comets, asteroids, and other objects. They are important objects to study because they can provide insights into the formation and evolution of our solar system, as well as the broader universe.

Learn more about dwarf planet:https://brainly.com/question/2274077

#SPJ1

Y component of momentum before collision  = -0.271 Kg m/s.

Y component of momentum before collision  = - mv

Using Energy Conservation -

mgh = 0.5m\(v^{2}\)

v= \(\sqrt{2gh}\)

v = \(\sqrt{2*9.8*1.5}\)

v = - 5.42 m/s

Y component of momentum before collision  = - 50×\(10^{-3}\) ×5.42 Kgm/s

Y component of momentum before collision  = -0.271 Kg m/s

Momentum is made of the mass of a particle and its speed. Momentum is a vector amount; i.e., it has both value and path. Isaac Newton's second regulation of motion states that the time charge of the exchange of momentum is the same as the pressure acting on the particle. See Newton's laws of motion.

In Newtonian mechanics, momentum (greater in particular linear momentum or translational momentum) is made from the mass and speed of an object. it is a standard mechanical amount. it's far a vector amount, possessing importance and direction. Momentum is a vector quantity: it has both significance and direction. because momentum has a path, it can be used to are expecting the resulting direction and speed of movement of objects when they collide. below, the basic residences of momentum are described in a single measurement.

To know more about Momentum visit here:

brainly.com/question/24030570

#SPJ4

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{f}{m} \\ \)

f is the force

m is the mass

From the question we have

\(a = \frac{10000}{4000} = 2.5 \\ \)

We have the final answer as

Hope this helps you

Answer:

Current = 6.82 A

Explanation:

Given the following data;

Power = 1500 Watts.

Voltage = 220 Volts.

To find the current;

Power = current * voltage

Substituting into the equation, we have;

1500 = current * 220

Current = 1500/220

Current = 6.82 Amperes.

Therefore, the current that traverses it is 6.82 Amperes.

Answer:

least distance= 13mm

ratio of the lattice = 1 : 0.71 : 0.58

Explanation:

given λ₁ = 650nm = 650×10⁻⁹m,  λ₂ = 500nm = 500×10⁻⁹m

approximately 2.093 x 10^(-6) cubic meters (or 2.093 milliliters) of coffee has spilled out of the beaker.To calculate the volume of coffee that has spilled out of the beaker, we can use the concept of thermal expansion. The change in volume is given by the formula ΔV = βVΔT, where β is the coefficient of volume expansion, V is the initial volume, and ΔT is the change in temperature.

First, let's convert the initial volume to cubic meters: V = 0.858 x 10^(-3) m^3.
Next, we calculate the change in temperature: ΔT = 90.6 - 18.2 = 72.4 °C.
The coefficient of volume expansion for water (and coffee) is approximately β = 3.4 x 10^(-4) °C^(-1).
Plugging in these values into the formula, we get:
ΔV = (3.4 x 10^(-4) °C^(-1)) * (0.858 x 10^(-3) m^3) * (72.4 °C) = 2.093 x 10^(-6) m^3.

Therefore, approximately 2.093 x 10^(-6) cubic meters (or 2.093 milliliters) of coffee has spilled out of the beaker.

 To  learn  more  about volume click on:brainly.com/question/28058531

#SPJ11

Answer:

800mph

Explanation:

The connection (R=Al) states that the resistance of a conductor depends on its resistivity, length, and cross-sectional area.

The connection (R=Al) states that the resistance of a conductor depends on its resistivity, length, and cross-sectional area. Other physical elements like temperature and others do affect it. Ohm () is its SI unit.The degree to which an object obstructs or resists an electric current is referred to as resistance. The movement of electrons is referred to as electric current. Consider the scenario of a person navigating a busy market and encountering difficulty moving from one shop to another to better understand resistance.

learn momore about resistance here:

https://brainly.com/question/11431009

#SPJ4

The most common valve in water distribution systems is the a.gate valve.

This type of valve is widely used because of its ability to fully open and close with minimal obstruction in the water flow. It consists of a gate or a wedge that slides between two parallel seats to regulate the flow of water. The gate valve is commonly found in larger pipes because of its size and the fact that it can handle high pressure and flow rates. On the other hand, butterfly valves are commonly used in smaller pipes because of their compact size and ability to handle low-pressure applications.

Butterfly valves consist of a disc that rotates in the center of the pipe to control the flow of water. Check valves are typically used to prevent backflow and keep water flowing in one direction. They are commonly found in pump stations and in areas where there is a risk of water backflow contamination. Lastly, globe valves are typically used to regulate flow and are commonly found in smaller pipes. Therefore, the most common valve in water distribution system is the a. Gate valve.

know more about water distribution systems here:

https://brainly.com/question/20713735

#SPJ11

This equation relates the speed of the bullet (v) to the masses of the bullet (m) and the wood block (m₂), as well as the height (h) through which the system swings.

To determine the speed of the bullet (v), we can use the principle of conservation of mechanical energy in the system.

Initially, the system has only gravitational potential energy, which is converted into a combination of gravitational potential energy and kinetic energy after the collision. Assuming no energy is lost to other factors like friction or air resistance, we can equate the initial and final energies.

The initial energy is purely potential energy: m₂gh, where m₂ is the mass of the wood block, g is the acceleration due to gravity, and h is the height the system swings through.

The final energy is a combination of potential and kinetic energy: (m + m₂)gh + (1/2)(m + m₂)v², where m is the mass of the bullet and v is its velocity.

Equating the initial and final energies, we can solve for v:

m₂gh = (m + m₂)gh + (1/2)(m + m₂)v².

Simplifying the equation, we find:

v² = 2gh(m₂ - m) / (m + m₂).

Taking the square root of both sides, we get the expression for the speed of the bullet:

v = √[2gh(m₂ - m) / (m + m₂)].

This equation relates the speed of the bullet (v) to the masses of the bullet (m) and the wood block (m₂), as well as the height (h) through which the system swings.

Learn more about equation here:

https://brainly.com/question/29174899

#SPJ11

According to quantum mechanics, people do exhibit wave properties, but their wavelengths are too small to observe.

In the realm of quantum mechanics, all particles, including people, can exhibit wave-like properties. This phenomenon is known as wave-particle duality. According to the principles of quantum mechanics, particles such as electrons and photons can display both particle-like and wave-like characteristics. These wave-like properties are governed by the de Broglie wavelength, which describes the wave nature of a particle.

When it comes to people, the wavelengths associated with our macroscopic bodies are incredibly small. This is because the de Broglie wavelength is inversely proportional to the mass of the object. Since humans have a relatively large mass compared to subatomic particles, our wavelengths are incredibly minuscule and challenging to observe directly.

In the quantum realm, the wave nature of particles becomes more prominent at the microscopic level, where the de Broglie wavelengths of particles such as electrons and photons are more significant and observable. However, due to the small mass of these particles, their wavelengths are more readily apparent.

Learn more about Wavelengths

brainly.com/question/31143857

#SPJ11

\(

{\huge{\red{\boxed{\mathfrak{\blue{\underline{\blue{A}{\red{N}{\pink{S}{\orange{W}{\red{E}{\purple{R}}}}}}}}}}}}}\)

Levon Ter-Petrosyan won the majority of the votes and became the first president of independent Armenia.