I need this one fast!!!!

Nitrous oxide is the chemical name for "laughing gas." What are the names and the number of atoms in a molecule of
nitrous oxide, N2O?

1.one nitrogen atom and two oxygen atoms

2.two nitrogen atoms and one oxygen atom

3. one nitrogen atom and one oxygen atom

4. two nitrogen atoms and two oxygen atoms

Explanation:

derive its name from a Native American word meaning wild onion

Answer:

Suppose at time t1 = zero and v1 = 50 MPH

                    time t2 = 10 sec and v2 = 10 MPH

Change in speed   =  (v2 - v1) / (t2 - t1) = (10 - 50) MPH / (10 - 0) sec

Change in speed = -40 MPH / 10 sec = - 4 MPH / sec

If you specify the velocity as always East then

change in velocity = - 4 MPH East

Had the particle finished by moving in the Westerly direction  then

Change in velocity = (-10 - 50) MPH / 10 sec = -60 / 10 MPH = -60 MPH East

Where West was the positive direction

Initially v1 was 50 East and v2 was -10 East with a difference of 60 MPH

In the given scenario, if the force is reset back to 1 N, hit start and then set the brake force to 1 N, and then hit enter, the motion of the wheel will either be zero (if the brake force is applied) or it will be in a state of constant velocity (if no brake force is applied).

In this scenario, the acceleration vector will be zero since there is no force acting on the object.

When a force acts on a body, it can cause it to either change its velocity or change its direction, or both.

If no force acts on the body, the object will remain in a state of rest or constant motion.

In the given scenario, if there is no force acting on the wheel, it will remain in a state of constant motion.

Therefore, the acceleration vector will be zero.

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The S.I. unit of E is NC^-1 and that of B is NA^-1 m^-1, then unit of E/B is A m/C (ampere meter per coulomb). This unit represents the ratio between the electric field and the magnetic field, indicating the strength and direction of the electromagnetic field.

The SI unit of electric field (E) is NC^(-1) (newton per coulomb) and the SI unit of magnetic field (B) is NA^(-1) m^(-1) (tesla). To determine the unit of E/B, we need to divide the unit of E by the unit of B.

Dividing the unit of E (NC^(-1)) by the unit of B (NA^(-1) m^(-1)), we can simplify the expression:

E/B = (NC^(-1))/(NA^(-1) m^(-1))

To simplify this expression, we can cancel out the common units in the numerator and denominator:

E/B = (N/C)/(N/(A m))

Now, let's simplify further by dividing the numerator and denominator:

E/B = (N/C) * (A m/N)

Canceling out the common units:

E/B = (A m)/(C)

Therefore, the unit of E/B is A m/C (ampere meter per coulomb).

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Answer:

I’d say the air outside the hemisphere is more free than from the inside of the hemisphere.

Explanation:

hope this help!

Option A is correct, conduction is the method by which the primary heat transfer mechanism does one end of a steel rod becomes hot when the other end is placed in a flame

Conduction is the manner with the aid of which heat is transferred from the warmer quit to the colder cease of an item. The ability of the item to behave warmth is known as its thermal conductivity and is denoted as k.

Heat spontaneously flows along a temperature gradient. for example, warmth is performed from the hotplate of an electric range to the bottom of a saucepan in contact with it. in the absence of an opposing external riding energy source, inside a frame or between bodies, temperature differences decay through the years, and thermal equilibrium is approached, temperature turning more uniform.

In conduction, the warmth glide within and via the body itself. In evaluation, in a warmness switch by using thermal radiation, the transfer is regular between bodies, which may be separated spatially. warmness also can be transferred by using a combination of conduction and radiation. In solids, conduction is mediated by way of the combination of vibrations and collisions of molecules, propagation and collisions of phonons, and diffusion and collisions of loose electrons. In gases and drinks, conduction is due to the collisions and diffusion of molecules at some stage in their random movement.

Photons in this context do not collide with one another, and so warmness delivery by using electromagnetic radiation is conceptually awesome from heat conduction by way of microscopic diffusion and collisions of cloth particles and phonons. but the difference is frequently now not easily found except the fabric is semi-transparent.

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Answer: it is located over Ellesmere Island, Canada

Explanation

it is now drifting away from North America and toward Siberia.

Answer:ellesmere island, Canada

Ultra = X-ray

Explanation:

how are things going to paint the roof for beginners painting and decorating the whole house so I'm going away with a few sports mates for a couple nights for beginners but will have a look painting at a time and see what is going to be Strong enough

An object's momentum may be calculated mathematically by multiplying its mass by its velocity. Mass plus velocity equals momentum.

Mass in motion, which is related to the mass of a moving body, is the straightforward definition of momentum. By multiplying the mass with the velocity, the amount of motion is calculated. Momentum is defined as the result of multiplying mass and velocity.

According to a mathematical formula, an object's momentum is determined by multiplying its mass by its speed. Mass multiplied by velocity equals momentum. Momentum is represented by the lower case letter p in physics. As a result, p = m • v may be used to rewrite the previous equation.

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The vertical component of the velocity after the given interval of time will be:

B: -9.8 m/s

D: -19.6 m/s

F: -29.4 m/s

H: -39.2 m/s

A projectile can be described as any object upon which the only force is gravity. The projectile travels with a parabolic trajectory because of the influence of gravity. No horizontal forces are acting upon projectiles so there is no horizontal acceleration.

The horizontal velocity of a projectile is constant and the vertical acceleration is caused by gravity. The vertical component of the velocity of a projectile changes by 9.8 m/s each second while the horizontal motion of a projectile is independent of its vertical motion.

Given, the initial horizontal velocity, vₓ = 18 m/s

The initial vertical velocity, Vy = 0 m/s

The time interval = 1 sec

The vertical component of the velocity is calculated as;

\(V_y = V_{0y} -gt\)

\(V_y = 0- (9.8) (1)\\V_y = -9.8 m/s\)

The vertical component when t = 2 sec and horizontal velocity, Vx = 18 m/s

\(V_y = 0- (9.8) (2)\\V_y = -19.6 m/s\)

The vertical component of velocity when t = 3sec:

\(V_y = 0- (9.8) (3)\\V_y = -29.4 m/s\)

The vertical component of velocity when t = 4sec:

\(V_y = 0- (9.8) (4)\\V_y = -39.2 m/s\)

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Answer:

A

Explanation:

change in direction ,velocity stays the same

Answer:

\(0.25\ cm^3\)

Explanation:

Data provided in the question

Number of drops fell from a burret = 60

The first reading is 28 cm^3

And, the final reading is 43 cm^3

Based on the above information, the average volume of one drop is

\(= \frac{Final\ readings - first\ readings}{number\ of\ drops}\)

\(= \frac{43\ cm^3 - 28\ cm^3}{60 \ drops}\)

\(= 0.25\ cm^3\)

Basically we applies the above formula by applying the three items given in the question so that the average volume of one drop could come

Answer:

0.25\ cm^30.25 cm

3

Explanation:

Data provided in the question

Number of drops fell from a burret = 60

The first reading is 28 cm^3

And, the final reading is 43 cm^3

Based on the above information, the average volume of one drop is

= \frac{Final\ readings - first\ readings}{number\ of\ drops}=

number of drops

Final readings−first readings

= \frac{43\ cm^3 - 28\ cm^3}{60 \ drops}=

60 drops

43 cm

3

−28 cm

3

= 0.25\ cm^3=0.25 cm

3

Answer:

The overall charge on the wall is zero.

Explanation:

Because the atoms making the wall are neutral i.e. number of positive charges are equal to number of negative charges.

2 m/s is the speed of the fluid emerging from the hole.

Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. This is the topic of fluid dynamics.

The equation for Bernoulli's principle is

Energy per unit volume before= energy per unit volume after

P1+1/2pv1²+pgh1=P2+1/2pv2²+pgh2

pv1²/2+pgh1+p1=pv2²/2+pgh2+p2

Since v=0, h2=0 and p1=p2, we get

pgh1=pv2²/2

v2= √2gh1=√2.98m/s²×0.2m

v2=2m/s

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A nodal voltage source is a type of voltage source that is connected directly between two nodes in a circuit, rather than being connected in series with a circuit element.

Nodal analysis is a circuit analysis technique that uses Kirchhoff's Current Law (KCL) to determine the voltage at each node in a circuit. When a voltage source is connected between two nodes, it can be included in nodal analysis as a source term in the equation for the corresponding node.

The voltage value of the source is simply included as a known value in the equation. This technique can be used to analyze complex circuits with multiple voltage sources and circuit elements.

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Answer:

Mirror

Explanation:

Answer:

Because fluid pressure increases with depth, there is more fluid pressure___outside__ of a submerged object than on the _inside___

Explanation:

As the object is submerged means that it is under water and not on the surface. It tells that water pressure exerting on the object from the outside is higher than inside which is why the object is submerged.

In the other case, the object will not remain submerged if its internal pressure is high, it will float on water.

The time elapsed between an instant when the object's speed is at a maximum and the next instant when its acceleration is at a maximum is approximately 0.34 seconds.

When an object attached to a horizontal spring is oscillating back and forth, its motion can be described by simple harmonic motion (SHM). In SHM, the object's velocity and acceleration are related to each other.

Given that the maximum speed of the object is 1.71 m/s and the maximum acceleration is 5.08 m/s², we can find the time elapsed between the two instances.

The maximum speed occurs when the object passes through its equilibrium position, where the net force acting on it is zero. At this point, the acceleration is at its maximum.

The time period (T) of the oscillation is the time taken for the object to complete one full cycle of motion. The time elapsed between the two instances in question is half of the time period, as the object reaches its maximum speed and maximum acceleration halfway through one cycle.

We can use the formulas for velocity (v) and acceleration (a) in SHM to relate the maximum speed and maximum acceleration:

v = ωA

a = ω²A

Where:

v is the maximum speed,

a is the maximum acceleration,

ω is the angular frequency, and

A is the amplitude of the oscillation.

By rearranging the equations, we can solve for ω:

ω = v / A

ω = a / √A

We know that the maximum speed is 1.71 m/s and the maximum acceleration is 5.08 m/s². Let's assume the amplitude A is constant and cancel out in the calculation:

ω = 1.71 / A

ω = 5.08 / √A

Setting the two expressions for ω equal to each other:

1.71 / A = 5.08 / √A

Squaring both sides:

2.9241 / A² = 25.8064 / A

Cross-multiplying:

25.8064 * A = 2.9241 * A²

Rearranging to the quadratic form:

2.9241 * A² - 25.8064 * A = 0

Solving this quadratic equation, we find two solutions: A = 0 or A = 8.843 m. Since the amplitude cannot be zero for non-trivial motion, we consider A = 8.843 m as the valid amplitude.

Now we can calculate the angular frequency ω:

ω = 1.71 / 8.843

ω ≈ 0.1934 rad/s

The time period T is given by:

T = 2π / ω

T ≈ 32.49 s

Finally, the time elapsed between the two instances is half of the time period:

Elapsed time = T / 2

Elapsed time ≈ 32.49 / 2

Elapsed time ≈ 16.24 s

The time elapsed between an instant when the object's speed is at a maximum and the next instant when its acceleration is at a maximum is approximately 0.34 seconds.

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Jupiter's volume is more than ten times as large as Saturn's volume. This statement is true. Jupiter is the largest planet in our solar system with a volume of about 1,431,281,810,739 km³ while Saturn is the second-largest planet with a volume of about 827,129,915,150 km³.

Jupiter is approximately 11 times larger than Saturn. The two planets belong to the gas giant category, and they share many similarities such as having a large number of moons. Jupiter is famous for its Great Red Spot and powerful magnetic field, while Saturn is well-known for its stunning ring system. Both planets have been the focus of scientific research and exploration, and they continue to fascinate scientists and stargazers alike. In conclusion, Jupiter's volume is more than ten times as large as Saturn's volume.

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The total hydrostatic force on the hoovar dam = f=41.56 GN

Dam filled upto height =83% of 180 m  =83/100 *180  =149.4 m

Hydrostatic power p=   xpg

force acting on dam f= pressure *area  =∫p da

 =∫₀¹⁴⁹°⁴(xpg) (380dx)

 =380pg∫₀¹⁴⁹°⁴xdx

=380*1000*9.8[x²/2]₀¹⁴⁹°⁴

f=380*9.8*1000/2[(149.4)²-0²]

f=4.156*10¹⁰ N

f=41.56 GN

The net hydrostatic pressure (hp) is the hydrostatic pressure in the capillary minus hydrostatic pressure in the interstitial fluid.

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Students watched a cartoon either alone or with others and then rated how funny they found the cartoon to be.

Independent Variable:  student alone or with others

Dependent Variable:   how funny student thought the cartoon was

Answer:

Independent Variable: Watching cartoon alone or with others

Dependent Variable: how funny they found the cartoon to be

Explanation:

A dependent variable is the variable being tested. The change in the value of dependent variable depends on the independent variable.

An independent variable is used to test the effects on dependent variable and its does not depend on any variable.

In the above example the dependent variable is how funny the cartoon was. This is being tested and it is tested by independent variable i.e. Students watching cartoon either alone or with others. So the cartoon is funny or not depends on watching cartoon alone or with friends.

Answer:

Explanation:

Force equal to resistive force will be applied for movement . So force applied

F = 220 N .

displacement = 2800 m

work done against resistive force

= force x displacement

= 220 x 2800 J

= 6.16 x 10⁵ J .

Answer: 0-3 minutes

Explanation:

On the side of the graph, it shows you the distance the car was moving. As you know, MPH (miles per hour) shows how fast an object is moving, meaning that the car was going around 0-1 mph around minutes 0-3. Just make sure you know how to read a graph and this will become an easy question for you :)

Answer:

5-8 minutes the car isn't traveling. The g above is wrong

Explanation:

The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N

The gravitaional force between two objects can be obtained by using the following formula:

F = GM₁M₂ / r²

Where

The following data were obtained from he question:

The gravitaional force can be obtained as shown below:

F = GM₁M₂ / r²

F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²

F = 1.63×10³ N

Thus, the gravitational force is 1.63×10³ N

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Fission reactors are an important energy source, but environmental costs and issues are associated with their production. The most significant issue is the production of nuclear waste, which poses a serious threat to the environment and public health.

Nuclear waste is radioactive and can remain hazardous for thousands of years, making it difficult to safely dispose of. Moreover, it can contaminate water, soil, and air if disposed of improperly. Another issue is the high consumption of water required to cool the reactor, which can have a negative impact on aquatic life in rivers and lakes. Furthermore, the production and mining of uranium, which is the fuel for fission reactors, can lead to soil erosion and contamination. Additionally, uranium mining requires large amounts of energy, contributing to greenhouse gas emissions and other forms of pollution. In conclusion, producing energy through fission reactors results in several environmental costs and issues. While nuclear power is a clean source of energy compared to fossil fuels, its production and waste disposal methods pose serious environmental risks.

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Answer:

1. Motion

2. Empty space

3. Far apart

4. Independently

5. Random or rapid

6. Collision

7. Kinetic energy

8. Atmospheric

9. 273 Kelvin or 0° Celsius

10. 1 atm, 101.3 kPa or 760 mmHg

Explanation:

In science, matter can be defined as anything that has mass and occupies space. Any physical object that is found on earth is typically composed of matter. Matter are known to be made up of atoms and as a result has the property of existing in states.

Generally, matter exists in three (3) distinct or classical phases and these are;

I. Gas.

II. Solid.

III. Liquid.

Filling the missing words or texts in the question, we have;

The kinetic theory describes the motion of particles in matter and the forces of attraction between them. The theory assumes that the volume occupied by a gas is mostly empty space, that the particles of gas are relatively far apart, move independently of each other, and are in constant random or rapid motion. The collision between particles are perfectly elastic so that the total kinetic energy remains constant. Gas pressure results from the simultaneous collisions of billions of particles with an object. Barometers are used to measure atmospheric pressure. Standard conditions are defined as a temperature of 273 Kelvin or 0° Celsius and a pressure of 1 atm, 101.3 kPa or 760 mmHg.

Answer:

d

Explanation:

When a teacher mixed zinc (Zn) with hydrogen chloride (HCl), one or more new substances formed. Hence, option (d) is correct.

A chemical reaction is a procedure that causes one group of chemical components to change chemically into another.

Chemical reactions, which can frequently be described by a chemical equation, traditionally include changes that only affect the locations of electrons in the formation and dissolution of chemical bonds between atoms, with no change to the nuclei (no change to the elements present).

The study of chemical processes involving unstable and radioactive elements, where both electronic and nuclear changes may take place, is known as nuclear chemistry.

When the teacher mixed zinc (Zn) with hydrogen chloride (HCl), chemical reaction happens and more than one new substances formed.

2Zn + 2HCl → 2ZnCl + H₂

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