You are driving a car and are at a stop light. When the light turns green, you
step on the gas and accelerate at 6.Omi/hr2. Your final speed is 60 miles per
hour (mi/hr or mph). How much time did it take you to get to your final speed?

The resistance of a light bulb is not constant and can vary as a function of the current passing through it.

As current passes through a light bulb filament, the filament heats up and its temperature increases. This increase in temperature causes the resistance of the filament to increase as well. The relationship between the resistance of the filament and the current passing through it can be described by Ohm's Law, which states that the resistance is equal to the voltage across the filament divided by the current passing through it:

R = V / I

Since the voltage across the filament is typically constant in a given circuit, an increase in current will result in an increase in the resistance of the filament. This increase in resistance will cause the filament to dissipate more energy in the form of heat, which will cause it to glow brighter.

However, if the current passing through the filament becomes too high, the temperature of the filament can exceed its melting point and cause the filament to break or burn out. Therefore, the resistance of a light bulb is not a simple linear function of current, but rather a more complex relationship that depends on the specific properties of the filament and the circuit in which it is used.

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Answer: Gas

Explanation:

the particles in a gas aren’t close together and they move freely. Like the air. can I have Brainliest plz.

Answer: Plasma

Explanation:

Plasma is a state of matter that consists of hot ionized gas. It should also be noted that plasma contains negatively charged electrons and positive ions.

Therefore, Highest molecular motion, highest kinetic energy, no forces of attraction, least dense packaging of molecules describes plasma.

Based on the data obtained from the reaction, the following conclusions can be made;

Equation of the reaction is given below:

Trial 1

Mass of empty crucible with lid = 26.698 (g)

Mass of Mg metal, crucible, and lid  = 27.040 (g)

Mass of MgO, crucible, and lid = 27.198 (g)

Mass of metal = 27.040 - 26.698 = 0.342

Mass of MgO = 27.198 - 26.698 = 0.500

moles of Mg = mass/molar mass

moles of Mg = 0.342/24 = 0.01425

Based on the equation of reaction;

moles of MgO expected = 0.01425

moles of MgO produced =  mass/molar mass

moles of MgO produced = 0.500/40 = 0.0125

Percentage yield = 0.0125/0.01425 * 100%

Percent yield of MgO = 87.7%

Trial 2

Mass of empty crucible with lid = 26.691 (g)

Mass of Mg metal, crucible, and lid = 27.099 (g)

Mass of MgO, crucible, and lid = 27.361 (g)

Mass of metal = 27.099 - 26.691 = 0.408

Mass of MgO = 27.361 - 26.691 = 0.670

moles of Mg = mass/molar mass

moles of Mg = 0.408/24 = 0.0170

Based on the equation of reaction;

moles of MgO expected = 0.0170

molar mass of MgO = 40 g/mol

moles of MgO produced = 0.670/40 = 0.01675

Percent yield = 0.01675/0.0170 * 100%

Percent yield of MgO = 98.5%

Average percent yield = (87.7 + 98.5)% / 2

Average percent yield = 89.0%

Based on the data obtained from the reaction, the following conclusion can be made;

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Answer:

90.3

Explanation:

Edge 2022

It would take approximately 8.16 seconds to fill a 2-liter bucket.

How to solve for the time t

The time it will take  to fill a 2-liter bucket.

Given the diameter of the tap d = 2.5 cm

= 0.025 m, the radius r will be

d/2 = 0.0125 m.

The cross-sectional area A = πr²

= π*(0.0125 m)²

≈ 0.00049 m².

The flow rate Q is then the cross-sectional area times the speed of the flow: Q = A*v = 0.00049 m² * 0.5 m/s ≈ 0.000245 m³/s.

Since 1 m³ = 1000 L,

the flow rate is 0.000245 m³/s * 1000 L/m³

= 0.245 L/s.

Now we need to find out how long it takes to fill a 2L bucket with a flow rate of 0.245 L/s. We do this by dividing the total volume needed by the flow rate:

t = Volume / Flow rate

= 2 L / 0.245 L/s

= 8.16 seconds.

So, it would take approximately 8.16 seconds to fill a 2-liter bucket.

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The mineral that most likely possess these characteristics and fits all the given observations is fluorite.

Fluorite is a nonmetallic mineral that is often multicolored, ranging from purple, blue, green, yellow, and pink. It is also known to be luminescent, meaning it emits light when exposed to ultraviolet light. Fluorite is also nonmagnetic and produces a white streak.

To support this conclusion, one can conduct further tests such as a specific gravity test, which can help determine the density of the mineral, or a hardness test, which can determine the mineral's resistance to scratching. These additional tests can help confirm the identity of the mineral.

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The magnitude of the torque about the pivot at the bottom of the drawbridge is 8315.58 N-m.

The tension in the cable that is supporting the drawbridge be  2706.28 N.

The force that can cause an object to rotate along an axis is measured as torque. Similar to how force accelerates an item in linear kinematics, torque accelerates an object in an angular direction.

Given that:

Mass of the drawbridge: m = 300.0 kg.

Length of the door bridge: l = 4.0 m.

According to the picture: θ = 45.0° and φ = 67.0°

Weight of the drawbridge: W = mg = 300.0 × 9.8 N = 2940 N.

So,  the magnitude of the torque about the pivot at the bottom of the drawbridge = Wlsinθ = 2940 × 4.0 sin45° N-m =  8315.58 N-m.

The tension in the cable that is supporting the drawbridge = W sinφ

= 2940 sin67.0° N =  2706.28 N.

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The surface charge density on the inner spherical surface is closest to -299.6 nC/m^2.

The electric flux through the Gaussian surface is given by, Φ = E · A, where, Φ is the electric flux, E is the electric field and A is the area of the Gaussian surface. Since the electric field is radial and has the same magnitude at any point on the Gaussian surface,

Φ = E · 4πr^2

The charge enclosed by the Gaussian surface is,

Q = q + Qs

q is the charge on the point charge at the center (300 nC)

Qs is the charge on the conducting shell.

Using Gauss's law, Φ = Q / ε0

Substituting the expressions for Φ, Q, and E,

E · 4πr^2 = (q + Qs) / ε0

Solving for E,

E = (q + Qs) / (4πε0r^2)

The charge on the conducting shell is related to the surface charge density (σ) by, Qs = σ · As, where As is the surface area of the inner spherical surface. Substituting the expression for Qs, E = (q + σ · As) / (4πε0r^2)

The electric field must be zero at r = 0.8 m and r = 1.2 m since it is inside the conducting shell.

0 = (q + σ · As) / (4πε0 · 0.8^2)

0 = (q + σ · As) / (4πε0 · 1.2^2)

σ · As = -q / 4πε0 = -7500 nC/m^2

The surface area of the inner spherical surface is,

As = 4πr^2 = 4π · (0.8 m)^2 = 8π/5 m^2

Substituting this value,

σ = (-7500 nC/m^2) / (8π/5 m^2) ≈ -299.6 nC/m^2

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According to Kepler's first law of planetary motion, planets revolve around the sun such that the sun is always at one of its foci. This law is also known as the law of orbits.

According to Kepler's Second Law of planetary motion, a planet will cover equal amounts of area in an equal period of time if a line is drawn from the sun to the planet. This implies that the planet moves more slowly away from the sun and faster towards it.

According to Kepler's third Law of Planetary Motion, the squares of the orbital periods of the planets are directly proportional to the cubes of their semi-major axes.

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The potential-energy function curve of the marble as it moves along the x-axis indicates;

(a) The labeled x-coordinates at which the force on the marble is zero are;

(b) The labeled x-coordinate that is a position of stable equilibrium are;

(c) The labeled x-coordinate that is a position of unstable equilibrium are;

The potential energy of an object is the energy the object posses or has due to the position of the object with regards to other objects or the stresses within the object or other factors related to the object.

The possible potential-energy function figure obtained from a similar question online and created with MS Word is attached.

(a) The potential energy and force can be found using the formulas;

P.E. = m·g·h, where;

m·g = The force of gravity

h = The height of the object above the ground

The force, is therefore, the ratio of the potential energy to the height (vertical distance above the ground) of the object.

The force is therefore, the rate of change of the energy with distance, which indicates;

\(F = -\dfrac{dU}{dx}\)

The force is a force acting on the marble, from which we get the negative sign.

When the force is zero, we get;

\(F = -\dfrac{dU}{dx} = 0\)

Therefore;

dU = 0, and the tangent to the curve is therefore horizontal at the point

The point where dU is 0 are the turning points, including b and d

(b), The equilibrium is stable when the net force acting on the marble is zero, therefore;

The points which are positions of stable equilibrium are points;

(c) The positions of unstable equilibrium are points at which the force is not equal to zero, therefore;

F ≠ 0

At the point a, we get;

Therefore, the position a where the force is less than zero is a position of unstable

Similarly, at the point c, the slope, F > 0, therefore, the force is larger than zero, and the point with x-coordinate c is a position of unstable equilibrium.

The labeled x-coordinates that are positions of unstable equilibrium are;

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For people who don't speak Spanish.

translation:  

Identify the type of variable for each given situation (qualitative: nominal or ordinal) or (quantitative: continuous or discrete)

sorry though I cant answer your question.

Two weeks  ago I would have said flying cars were still firmly in the realm of techno-utopian fantasy, as they have been for decades. Now I’m not quite so sure.

In the coming few years nearly 20 small airborne vehicles are supposedly hitting the market (see table below). Some are drone-like, with anywhere from four to 18 rotors keeping them aloft. Most are fixed-wing craft with propellers that point upwards for vertical takeoff and landing (VTOL), and tilt forward for flight.

Answer:

if people somehow try puting airplane parts into cars than they wud use the same ways to fly etc.

Explanation:

Answer:

True

Explanation:

Answer:

Explanation:

like charges repel each other if one group of electrons has more mass it will push the other smaller mass of electrons away

Answer: A) and D)

Explanation:

The characteristic of the displacement is a vector allows to find the results for the components of the displacement are;

The displacement is a vector quantity, therefore it has modulus and direction, see attached for a diagram.

The reference system the West - East axis coincides with the x axis and the South - North axis with the y axis.

Let's use trigonometry to find its components.

          cos 55 = \(\frac{y}{d}\)  

          sin 55 =  \(\frac{x}{d}\)  

          y = d cos 55

          x = d sin 55

let's calculate

         y = 310 cos 55

         x = 310 sin 55

         y = 177.8 m

          x = 253.9 m

In conclusion using the characteristics of the displacement is a vector we can find the components of the displacement are;

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Answer:

4 target heart rate. is the answer

Explanation:

hope its right

a) The force diagram of the block and all the forces are in the image attached.

(b) The weight of the block and its parallel component is  98.1 N and 33.55 N respectively.

(c) The applied force on the block is 52.75 N

(a) The force diagram of the block include, the parallel and pedicular component, as well as friction force.

(b) The weight of the block and its parallel component is calculated as;

Fg = mg

where;

Fg = 10 kg x 9.81 m/s²

Fg = 98.1 N

Fgₓ = mgsinθ

Fgₓ = 98.1 N x sin(20)

Fgₓ = 33.55 N

(c) The applied force on the block is calculated as follows;

F - Fgₓ - μFgcosθ = ma

where;

μ = a/g

μ = 1 / 9.81 = 0.1

F - 33.55 - 0.1(98.1 x cos20) = 10 x 1

F - 33.55 - 9.2 = 10

F = 10 + 33.55 + 9.2

F = 52.75 N

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The momentum of a 30-kg dog running at a speed of 6 m/s is 180kgm/s.

This is referred to as a measurable quantity of movement in a body or object and is used in science to define the quantity of motion.

It is also known as the product of the mass and velocity of an object and can be calculated by the following below:

Mass = 30kg dog, velocity = 6 m/s

Therefore the momentum of the body is 30kg × 6m/s = 180kgm/s.

This is however the correct choice.

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when investing in RSA retail saving bonds, investors should consider interest rates, investment term, risk, and liquidity. It is recommended that investors conduct thorough research and seek professional advice before making any investment decisions.

Firstly, it is important to consider the current interest rates being offered on the bonds. This will help investors determine the potential returns they can expect to earn on their investment.

Another factor to consider is the length of the investment term. RSA retail saving bonds are available in a variety of terms, ranging from 2 to 5 years.

It is also important to consider the level of risk associated with investing in RSA retail saving bonds. While these bonds are considered low-risk investments, there is always a chance that the issuer may default on the bond, resulting in the loss of the investor's principal.

Lastly, investors should consider the liquidity of the investment. RSA retail saving bonds are not easily tradable and may not be suitable for investors who require quick access to their funds.

In summary, when investing in RSA retail saving bonds, investors should consider interest rates, investment term, risk, and liquidity. It is recommended that investors conduct thorough research and seek professional advice before making any investment decisions.

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1. In Joe's rigid box, the final pressure inside will remain the same as the initial atmospheric pressure, which is 100 kPa. The rigid box does not allow for any volume change, so the pressure remains constant throughout the heating process.

2. To determine the heat transfer required for each process, we can use the first law of thermodynamics, which states that the change in internal energy (ΔU) of a system is equal to the heat transfer (Q) into the system minus the work (W) done by the system.

ΔU = Q - W

For Joe's process in the rigid box, since the volume remains constant, there is no work done (W = 0). Therefore, the heat transfer required (Q) can be calculated as:

Q = ΔU

For Bob's weighted piston-cylinder device, the volume can change, and work is involved in moving the piston against the external pressure. The work done can be calculated using the equation:

W = PΔV

Where P is the pressure and ΔV is the change in volume.

The heat transfer required (Q) for Bob's process can be calculated as:

Q = ΔU + W

To determine which process requires less heat transfer, we need to compare the values of Q for Joe's and Bob's processes.

3. To calculate the heating power (Watts) required for each process, we need to know the time required for the entire process to be completed. Let's assume the entire process must be completed in one minute (60 seconds).

The heating power (P) can be calculated using the equation:

P = Q / t

Where Q is the heat transfer and t is the time taken.

By calculating the heat transfer (Q) for each process and dividing it by 60 seconds, we can determine the heating power required for Joe's and Bob's processes.

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Answer:

Magnification of the objective lens used and the magnification of the ocular lens.

Explanation: I hope you have/had an amazing day today<3

If the moon is highest in the sky in the morning at 6:00am, it means that it is in its waning phase. This is because the moon rises later and later each day during its waning phase, eventually reaching its highest point in the morning.

After one week, the moon will have gone through approximately half of its cycle and will be in its third quarter phase. This is when the moon appears as a half-circle in the sky, with the right half illuminated. During this phase, the moon rises around midnight and sets around noon, making it visible during the morning hours. As the moon continues to wane, it will appear smaller and smaller in the sky until it reaches its new moon phase, which marks the beginning of a new lunar cycle. Understanding the phases of the moon is important for astronomers and anyone who wants to track the moon's position and movements in the sky.

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Answer:

Red

Orange

Yellow

Green

Blue

Indigo

Violet

shortest wavelength: violet (380 nanometers)

¯\(°_o)/¯

Answer:

Red    Orange    Yellow    Green   Blue   Indigo    Violet

violet has the shortest wavelength

happy to help :)

When the energy in a system is transformed, the total amount of energy in the system is always conserved.

The changing of one form of energy into another, or the movement of energy from one place to another. An energy transformation is a change of power from one form to another. Fire (Chemical energy Heat and Light) Electric lamp (Electrical energy Heat and Light), Microphone (Sound Electrical energy), Wave power (Mechanical energy Electrical energy). Energy transformation is also known as energy regeneration which is a process of changing energy from one form to another. Energy transformations are procedures that convert energy from one type, for example, kinetic, gravitational potential, and chemical energy.

So we can conclude that an energy transformation is the change of energy from one form to another.

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Kieran had a greater average speed than Jevon. Let us go into more detail in the explanation below. To compare the average speeds of Kieran and Jevon, we need to find out the speed of each person.

We can use the formula speed = distance/time. Kieran ran 8 laps in 18 minutes, which means he ran 8/18 = 0.44 laps per minute. To find out Kieran's speed, we need to multiply this by the length of one lap. If we assume that the length of one lap is 400 meters, then Kieran's speed is:0.44 laps per minute × 400 meters per lap = 176 meters per minute Jevon ran 6 laps of the track, but we don't know how long it took him.

Therefore, we can't calculate his speed directly. However, we can still compare his speed to Kieran's by using ratios. If we assume that Jevon ran the same length of track as Kieran, then we can write the following equation: Kieran's speed/Jevon's speed = Jevon's time/Kieran's time.

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Answer:

5238747643782 mph

Explanation:

i assure u it is