A 111.6 g sample of iron was heated from 0°C to 20°C. It absorbed 1004 J of energy. What is the specific heat capacity of iron?

They all have the same number of electrons in the electron cloud.

The answer would be:

X convex mirror

Y concave mirror

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Convex mirrors are used in side mirrors in cars because it has a wider field of view than others. This is because convex mirrors bend the light it reflects. The more it bends the light. The further the object is from the mirror, the image that will be produced will be smaller. That's why the side mirrors usually say that objects are closer than they appear.

A concave lens on the other hand, reflect light inwards, away from the light source. That's why they are used in telescopes, ,because they are used to collect light. The images that concave mirrors produces are enlarged.  

To increase the pitch of the jug sound, remove more liquid; doing so decreases the air column inside the jug which makes the vibration faster, thereby increasing the pitch.

The pitch of the sound produced by a jug when blown across the top is determined by the column of air that can vibrate inside the jug. The longer the air column, the lower the pitch of the sound, analogous to how longer pipes in a pipe organ produce lower notes. Therefore, to play a higher-pitched sound with a jug, the musician should remove more liquid from the jug. By doing so, he decreases the air column which makes the vibration faster, thus producing a higher-pitched sound. It is important to note that forcing more air over the opening of the jug does not change the pitch of the sound but increases the volume while adding more liquid produces a lower-pitched sound.

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182 Horsepower =

135,717.38 Watts

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Answer:

135,722

Explanation:

ck12

The resistance between the two sides of an outlet should be infinite. The two sides of the outlet are not connected to one another in any fashion as they are two sides of a circuit. The diagram below shows how this works. In an AC circuit, as shown below, the black wire provides AC power, the white is common, and the green is ground. Back in your breaker box, the common wires all go to one buss bar that is to earth ground and the ground wires go to earth ground as well by a separate path making sure that the residual voltage on the common doesn't cross over to the ground wire of another circuit. In the right hand diagram, they show how to connect wires for a series (daisy chain) to another outlet.

So my question is why are you trying to measure resistance here? Normally we would measure voltage. Are you trying to diagnose a circuit problem? In a 110vac system you should have 110vac from black to white and black to green and none from white to green (ideally if nothing is plugged into any outlets). With the breaker off, you should be able to measure the resistance between the two posts on the black side, and that should be 0ohms as they are the same point.

Current = (voltage) / (resistance)

Current = (240 V) / (12 ohms)

Current = 20 Amperes

First, we have to establish the reference system. Let's assume that the building is on the negative y-axis and that the brick was thrown at the origin (see figure attached).

According to this, the initial velocity [tex]V_{o}[/tex] has two components, because the brick was thrown at an angle [tex]\alpha=61\º[/tex]:

[tex]V_{ox}=V_{o}cos\alpha[/tex]   (1)

[tex]V_{ox}=8.6\frac{m}{s}cos(61\º)=4.169\frac{m}{s}[/tex]  (2)

[tex]V_{oy}=V_{o}sin\alpha[/tex]   (3)

[tex]V_{oy}=8.6\frac{m}{s}sin(61\º)=7.521\frac{m}{s}[/tex]   (4)

As this is a projectile motion, we have two principal equations related:

[tex]X=V_{ox}.t[/tex]  (5)

Where:

[tex]X=10.1m[/tex] is the distance where the brick landed

[tex]t[/tex] is the time in seconds

If we already know [tex]X [/tex] and [tex]V_{ox}[/tex], we have to find the time (we will need it for the following equation):

[tex]t= \frac{X}{ V_{ox}}[/tex]  (6)

[tex]t=2.42s[/tex]  (7)

[tex]-y=V_{oy}.t+\frac{1}{2}g.t^{2}[/tex]   (8)

Where:

[tex]y[/tex] is the height of the building (in this case it has a negative sign because of the reference system we chose)

[tex]g=-9.8\frac{m}{s^{2}}[/tex] is the acceleration due gravity

Substituting the known values, including the time we found on equation (7) in equation (8), we will find the height of the building:

[tex]-y=(7.521\frac{m}{s})(2.42s)+\frac{1}{2}(-9.8\frac{m}{s^{2}}).(2.42s)^{2}[/tex]   (9)

[tex]-y=-10.52m[/tex]   (10)

Multiplying by -1 each side of the equation:

[tex]y=10.52m[/tex] >>>>This is the height of the building

The answer is:

[tex]46.19\frac{m}{s}[/tex]

Since we know the angle and the horizontal component (x-axis component) of the initial velocity, we can calculate the actual velocity (initial velocity) using the following equation:

[tex]Vo_{x}=Vo*Cos\alpha[/tex]

Where:

[tex]Vo_{x}=40\frac{m}{s}\\Vo= Initial velocity\\\alpha = angle= 30 (degrees)[/tex]

So, from the equation we can calculate Vo,

[tex]Vo_{x}=Vo*Cos\alpha\\\\\frac{Vo_{x}}{Cos\alpha}=Vo[/tex]

Then, by substituting we have:

[tex]Vo=\frac{40\frac{m}{s} }{Cos30}=\frac{40\frac{m}{s}}{0.866}=46.19\frac{m}{s}[/tex]

Have a nice day!

begin with vibrations of the eardrum. Sound waves cause the eardrum to vibrate. Cells in the cochlea detect the vibrations and send a message to the brain.

Answer:

Sound must have a means by which it can be transported, for example air. That is why there is no sound in space.

The way our brain perceives sound is through the ears. The tympanum that the human being has is connected to three bones and when the air vibrates, the tympanum also vibrates, causing these vibrations to pass through those bones towards the inner part of the ears and from there to our brain.

That is the way the brain perceives sound.

C stands for carbon. The O stands for oxygen. CO2 is one carbon atom and two oxygen atoms

Answer:

Two oxygen atoms

Explanation:

The majority of the oxygen in the air in our atmosphere consists of molecular oxygen ([tex]O_2[/tex]), which consists of 2 atoms of oxygen, since free oxygen mainly form covalent bonds with other atoms of oxygen.

A small fraction of the oxygen, however, in the ozone form, which consists of 3 atoms of oxygen bond together ([tex]O_3[/tex]).

Only the shape of the juice will change (C), because liquids take the shape of any container you pour them into.

Pouring the juice from the bottle into the glass doesn't change its mass, stat, or volume.  So why should pouring it from the glass onto the floor change any of those things ?

When Ashlee spills the orange juice on the floor, the characteristic that changes is the volume of the juice.

The characteristic of the juice that will change when it spills all over the floor is its volume. When the glass breaks, causing the juice to spill, the volume of the juice will no longer be contained within the glass.

I don’t really really know

Weight is a  unit of force.

Newtons measure force.

5 kg is a mass and is in kg. Kg and mass are independent of location. 5 kg is 5 kg on the moon, here on earth, on Jupiter and on Mars or anywhere else you care to name.

F = m*a

F = 5 * 9.81

F = 49.05 Newtons. This is how things should be weighed on planet earth.

a. Sweet corn and possibly d. okra.

Spinach is the crop least likely to do well in very hot temperatures due to its preference for cooler temperatures and increased likelihood of bolt when exposed to high heat.

The crop that is least likely to do well when the temperatures are very hot is spinach.

Spinach is a cool-season vegetable that prefers temperatures between 35 and 75 degrees Fahrenheit. When exposed to high temperatures, spinach is more prone to bolting, which means it quickly produces flowers and seeds instead of growing leaves. This affects the flavor and texture of the spinach, making it less desirable.

Sweet corn, tomatoes, and okra, on the other hand, are warm-season crops that are better adapted to hot temperatures and can tolerate higher heat without significant negative effects.

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Answer: single replacement

Explanation: THIS IS THE RIGHT ANSWER I DID IT ON USA TEST PREP

This question pertains to a chemical reaction, represented by a chemical equation. These reactions are divided into categories such as precipitation, acid-base, and oxidation-reduction based on their behavioural patterns and can be presented through balanced chemical equations.

The question refers to a type of chemical reaction. In chemistry, reactions are categorized based on patterns of behavior. Three main categories of reactions include: precipitation, acid-base, and oxidation-reduction (redox). These reactions can be symbolized by chemical equations, using formulas of substances that change (reactants) and are generated by the change (products). Each substance is separated by an arrow and preceded by integer coefficients to indicate their relative numbers. When the coefficients result in equal numbers of atoms for each element in the reactants and products, the equation is balanced.

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Hello,

Vinitial = 0

V final = 27 m/s

time = 8 seg

then

a = Delta(V) / Delta(t),

in other words:

a = (27-0)/8

a = 27/8

a= 3.375 m/s^2

Best regards

Here is your answer

D. III only

REASON:

1) The degree of curveness at the poles is maximum.

2) The density of field lines at and near poles is maximum.

Thus, magnetic field strength is maximum at the magnetic poles.

HOPE IT IS USEFUL

Charge +1

That is;  (1 × -2) + (2 × x) = 0 , where x is the charge of Cs

= -2 + 2x = 0

= 2x = +2

  x = +1

The charge of cesium in the compound with a formula of Cs₂O is +1

To obtain the charge of cesium, Cs in the compound with a formula of Cs₂O, we shall determine the oxidation number of cesium, Cs in the compound. This is illustrated below:

Cs₂O = 0 (Ground state)

2Cs + O = 0

2Cs - 2 = 0

Collect like terms

2Cs = 2

Divide both sides by 2

Cs = 2/ 2

Cs = +1

Thus, we can conclude from the above calculation that the charge of cesium, Cs is +1

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B is a speed.

A is an acceleration.

C and D are velocities.

The example of speed, with the unit as m/s (meter per second) in the following options is, option B. The option B has speed of 2 meter per second.

Speed of an body is the distance traveled by it with respect to time. Speed of a object is the ratio of total distance traveled by the object to the time taken by it. It can be given as,

[tex]s=\dfrac{x}{t}[/tex]

Here, (x) is the distance traveled by a body and (t) is the time taken by it.

As the distance is measured in the meters and time is measured in the second. Thus the speed of an object is measured in meter per second (m/s).

When the distance travelled by an object with respect to time is represented with its direction, then it is called the velocity of the object in that direction.

The rate of change of velocity is called the acceleration. It is represented in the meter per squared second (m/s²).

In the given option,

The example of speed, with the unit as m/s (meter per second) in the following options is, option B. The option B has speed of 2 meter per second.

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Answer:False

Explanation:

False

A. Sacral is the answer.

Sacral is the vertebrae are normally fused together to form a solid mass of bone.

Vertebrae exist the 33 individual, interlocking bones that form the spinal column. Each vertebra has three primary functional components: the vertebral body for load-bearing, the vertebral arch to rescue the spinal cord, and transverse processes for ligament attachment.

Sacral is the vertebrae are normally fused together to form a solid mass of bone.

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Potential difference is measured using a device called a voltmeter . Just like ammeters, some types have a pointer on a dial, but most have a digital display. However, unlike an ammeter, you must connect the voltmeter in parallel to measure the potential difference across a component in a circuit.

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It is just simply called a Voltmeter, and it reads potential differences.

Answer:

RESISTANCE

Explanation:

Answer:

Resistance

Explanation:

In a circuit, voltage source (cell or battery), key (for closing and opening circuit), resistance and a conducting wire are main components. Ohm's law states that current flowing in the circuit is proportional to the potential difference across the two ends.

V = I R

Where R is the resistance. Current also depends on the resistance. Greater resistance means lesser current would flow.

A light bulb and toaster represent resistance. These devices are based on Joule's Heating. When current passes through a resistance, it heats up and energy is lost as heat in case of toaster and as heat and light in case of light bulbs.

A.

Waves can transfer energy but they can’t transfer matter

Tue statement that is false about waves is that waves can transfer energy to matter. That is option D.

A wave is defined as a disturbance in a medium that carries energy without a net movement of particles.

The main properties of a wave include the following:

The above properties possessed by waves makes it possible for it to be able to transfer an object, change its direction and interact with each other but not to transfer energy to matter.

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➷ This is a true statement. The Mediterranean diet often replaces things such as butter with olive oil.

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

True. Olives and olive oil are staples foods in the Mediterranean diet. I Mediterranean and i can guarantee you it 100%.

Its B. I had the question just a week ago

Dave is right because most forms of EMR can be dangerous but the most dangerous form of Electromagnetic radiation has the most energy. This radiation is called gamma rays. Gamma rays are emitted by the nucleus of an atom and can go through 6 feet of concrete, as well as damage your DNA!

Have a nice day!

Answer:

A force that objects exert, stopping solid objects from passing through each other aka contact.

Pls mark Brainiest, am trying to become Virtuoso

B) Velocity

The spring's displacement determines the amplitude. Maximum displacement therefore means maximum amplitude.

Answer:

When a mass on a spring is at maximum displacement, velocity is at a minimum.

(b on edge)

Answer:

[tex]4.95\cdot 10^{-21} J[/tex]

Explanation:

First of all, let's convert everything into SI units:

n = 2.4 mol (number of gas moles)

[tex]p=11 atm = 1.11\cdot 10^6 Pa[/tex] (gas pressure)

[tex]V=4.3 L=4.3\cdot 10^{-3} m^3[/tex] (gas volume)

R = 8.31451 J/K · mol (gas constant)

The ideal gas equation states that

[tex]pV=nRT[/tex]

Solving for T, we find the gas temperature

[tex]T=\frac{pV}{nR}=\frac{(1.11\cdot 10^6)(4.3\cdot 10^{-3})}{(2.4)(8.31451)}=239.2 K[/tex]

And now we can find the average kinetic energy of the gas:

[tex]E_K = \frac{3}{2}kT[/tex]

where

k = 1.38066 × 10−23 J/K is the Boltzmann's constant

Substituting,

[tex]E_K = \frac{3}{2}(1.38066\cdot 10^{-23} J/K)(239.2 K)=4.95\cdot 10^{-21} J[/tex]

The average kinetic energy of the gas molecule is 4.97 × 10⁻²¹ J

From the question, we are to calculate the average kinetic energy of the gas molecule.

The average kinetic energy of a gas molecule can be calculated from the formula,

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

Where [tex]k_{b}[/tex] is the Boltzmann's constant

and T is the temperature

Now, we will determine the temperature of the gas

From the given information

R = 8.31451 J/K.mol

n = 2.4 moles

V = 4.3 L

P = 11 atm = 1114.58 KPa

From the ideal gas equation

PV=nRT

Then, we can write that

[tex]T = \frac{PV}{nR}[/tex]

Putting the parameters into the equation, we get

[tex]T = \frac{1114.58 \times 4.3}{2.4 \times 8.31451}[/tex]

T = 240.1772

T ≅ 240.2 K

Now, for the average kinetic energy of the gas molecule

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

From the given information

[tex]k_{b} = 1.38066 \times 10^{-23}[/tex]

∴ [tex]KE_{avg}=\frac{3}{2} \times 1.38066 \times 10^{-23} \times 240.2[/tex]

[tex]KE_{avg}= 4.97 \times 10^{-21} \ J[/tex]

Hence, the average kinetic energy of the gas molecule is 4.97 × 10⁻²¹ J

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the formula for momentum is velocity times mass

car :

1200 x 30 = 36000

truck:

2000 x 20 = 40000

Ans : truck has a greater momentum

Non-market distribution method

non-market distribution methods, hope this helps. Have a good day.