I need help with this ASAP.. it was due today

Answer:

When a body moves along a straight line with uniform speed or steady speed is called Uniform motion. When a body moves along a straight line but with variable or change in speed is called non-uniform motion.Hope this answer helps.

Answer:

. When a body moves along a straight line with uniform speed or steady speed is called Uniform motion. When a body moves along a straight line but with variable or change in speed is called non-uniform motion

Answer:

11196.14 m

Explanation:

From the question given above, the following data were obtained:

Horizontal velocity (u) = 286.2 m/s

Height (h) = 7500 m

Horizontal distance (s) =?

Next, we shall determine the time taken for the payload to get to the target. This can be obtained as follow:

Height (h) = 7500 m

Acceleration due to gravity (g) = 9.8 m/s²

Time (t) =?

h = ½gt²

7500 = ½ × 9.8 × t²

7500 = 4.9 × t²

Divide both side by 4.9

t² = 7500 / 4.9

Take the square root of both side

t = √(7500 / 4.9)

t = 39.12 s

Finally, we shall determine the horizontal distance as follow:

Horizontal velocity (u) = 286.2 m/s

Time (t) = 39.12 s

Horizontal distance (s) =.?

s = ut

s = 286.2 × 39.12

s = 11196.14 m

Thus the payload will travel 11196.14 m horizontally in order to hit the target

Answer: x(t2)−x(t1) over the time interval [t1,t2]

Explanation: hope this helps

Answer:

1200

Explanation:

Since all three cars have the same final velocity, the one with the greatest mass, which is car X, will have the most amount of momentum after 10 seconds.

The amount of momentum each car has after 10 seconds will depend on both its mass and its velocity. Since all three cars experience the same net accelerating force, they will all have the same acceleration. However, because car X is more massive than car Y, which is more massive than car Z, it will take more force to accelerate car X to the same acceleration as car Y and car Z.

Therefore, after 10 seconds, all three cars will have the same final velocity (assuming they all started from rest), but car X will have a greater amount of momentum than car Y and car Z because of its greater mass.

The formula for momentum is:

momentum = mass x velocity. Since all three cars have the same final velocity, the one with the greatest mass, which is car X, will have the most amount of momentum after 10 seconds.

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Answer:

Explanation:

The spectrum of the planet clearly shows the presence of iron, hydrogen and sulfur.

The spectrum of the planet shows the presence of iron, hydrogen and sulfur.

A spectrum is a state that may fluctuate without gaps over a continuum and is not constrained to a particular set of values (plural: spectra or spectrums)[1]. After passing through a prism, visible light takes on a rainbow of colours, which is how the term was first used scientifically in optics. As knowledge of light increased on a scientific level, it started to encompass the entire electromagnetic spectrum. As a result, it evolved into a mapping of a variety of magnitudes (wavelengths) to a variety of attributes, including the perceived "colours of the rainbow" and other features that correspond to wavelengths outside of the visible light spectrum.

Today, analogies with spectrum are used to discuss subjects unrelated to optics.

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When a disease called myopia (near-sightedness) goes untreated, the picture of a distant object is centred in front of the retina, resulting in fuzzy distance vision. Myopia is a result of an imbalance between the eye's optical axial length and refracting power.

Myopia, a disease that affects many people, causes near objects to appear clear while far-distant objects to appear blurry. It happens when light rays incorrectly bend (refract) due to the shape of the eye or specific portions of the eye. When images enter the eye and focus in front of the retina, myopia is the result.

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Many non-spontaneous biochemical reactions couple with other reactions, which supply enough free energy to drive them all. This statement is True. A non-spontaneous reaction is a reaction that requires energy to proceed, also known as an endergonic reaction.

It has a positive ∆G, which means that it absorbs free energy rather than releasing it. On the other hand, a spontaneous reaction is a reaction that proceeds on its own, releasing free energy. It has a negative ∆G, which means that it releases free energy and requires no additional energy input to proceed. A coupled reaction is a chemical reaction in which the free energy released by one reaction drives another reaction that requires free energy. The two reactions must be coupled together in a way that enables them to share free energy, resulting in the spontaneous progression of the entire system.

As a result, many non-spontaneous biochemical reactions couple with other reactions that supply enough free energy to drive them all. The most common example of coupled reactions is the coupling of ATP hydrolysis with non-spontaneous reactions. This coupling can provide the energy required for cellular processes like muscle contraction, nerve impulse transmission, and protein synthesis. Furthermore, the coupled reactions serve as a means of energy conservation in living organisms.

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The magnitude of the braking force is given by:

Replace the values of m=339kg, v_f=3.25m/s, v_0=27.9m/s and d=5.19m to find the magnitude of the braking force:

The minus sign accounts for the fact that the car is decelerating.

Therefore, the magnitude of the braking force is approximately 25,077N.

Mr. X is guilty if the average speed of the car was 80 km/h, if we consider the speed limit as 80 km/h.

Average speed i defined as the ratio of total distance and total time taken by the object to cover that distance. It may or may not be the constant speed of the whole journey. We can also say that average speed is the average of minimum speed and the maximum speed of the object during the entire journey. So there might be a point where Mr. X exceeded the speed above 80 km/h, which is the safe limit of speed. So Mr. X must be guilty for over speeding.

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The current in the wire is 3.03 A.

The magnetic field produced by a straight wire is given by the formula B = μ_0 I/2πr, where B is the magnetic field, I is the current, r is the distance from the wire, and μ_0 is the permeability of free space.

Substituting the given values, we have 6.1 × 10^-6 T = (4π × 10^-7 T·m/A) I / (2π × 0.25 m).

Simplifying and solving for I, we get:

I = 6.1 × 10^-6 T × 2π × 0.25 m / (4π × 10^-7 T·m/A)

I = 3.03 A

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Answer:D warm air rising

Among the given options, cultural differences are most likely to be the centrifugal force within the EU in the future. The EU is a political and economic union of 27 member states, and cultural differences among its member states have always been present.

With the increasing number of immigrants from different parts of the world, the cultural differences among EU member states are becoming more prominent. Each member state has its unique language, history, customs, and traditions, which can create misunderstandings and conflicts among the member states.
The EU aims to promote unity and solidarity among its member states, but cultural differences can lead to a lack of understanding and trust between them. The EU's diverse cultural heritage is both a strength and a challenge for the union. The EU needs to find a way to respect the cultural diversity of its member states while maintaining its unity.
However, the cultural differences among the member states can still cause tensions and conflicts in the future. Therefore, it is crucial for the EU to continue to foster cultural awareness and understanding among its member states to maintain the union's cohesion and stability.

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complete question:

Which of these is most likely to be a centrifugal force within the EU in the future?

a. trade barriers

b. closed borders

c. pollution problems

d. cultural differences

Answer:

There are several ways to consider the composition of the human body, including the elements, type of molecule, or type of cells. Most of the human body is made up of water and H2O, with bone cells being comprised of 31% water and the lungs 83%.1  Therefore, it isn't surprising that most of the human body's mass is oxygen. Carbon, the basic unit for organic molecules, comes in second. 96.2% of the mass of the human body is made up of just four elements: oxygen, carbon, hydrogen, and nitrogen.

Explanation:

Elements are essential units that are the basic constituents of all living and non-living beings. They are the core of the universe. Every tiny or huge particle comprises elements. Our body is built up of five major elements: Carbon, Hydrogen, Oxygen, Nitrogen and calcium.

A magnetic field created by the electric current causes the compass needle to move. Option D is the correct answer.

When an electric current flows through a wire, it creates a magnetic field around the wire. The direction of the magnetic field is determined by the direction of the current. When a compass is placed next to the wire, the magnetic field created by the current causes the compass needle to move.

In a simple circuit made from a battery, a light bulb, and a wire, the electric current flows from the battery, through the wire, and through the light bulb, and then back to the battery. This creates a magnetic field around the wire, which can cause the compass needle to move when it is placed next to the wire. Hence, option D is correct choice.

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The potential energy has decreased as the point charge was moved to a higher potential.

Potential energy is a type of stored energy that depends on how various system elements interact with one another. A spring's potential energy rises when it is crushed or stretched.

Instead of being a property of specific objects or particles, potential energy is a property of systems. For instance, the system composed of Earth and the elevated ball has more potential energy as they move away.

The energy stored between the capacitor's plates when it is charged is known as electrical potential energy.

Systems with components whose configurations, or relative positions, affect the strength of the forces they apply to one another, create potential energy. The gravitational pull of the Earth-ball system entirely depends on their distance from one another.

The change in potential energy (ΔU) can be calculated using the equation:

ΔU = q ΔV

where q is the charge of the point charge (-8.29 C) and ΔV is the change in potential (5.96 V).

So,

ΔU = -8.29 C * 5.96 V = -49.38 J

The negative sign indicates that the potential energy has decreased as the point charge was moved to a higher potential.

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Answer:

20m/s

Explanation:

Alex's acceleration is also Alex speed

A cylindrical resistor of radius 4.5 mm and length 2.0 cm is made of material that has a resistivity then current density J is  1.12 × \(10^{5}\)

Since P = i^2 r = (J^2) (A^2) R

J = 1/A \(\sqrt{P/R}\)

Current density (J)  = 1.12 × \(10^{5}\)

A material's electrical resistivity, also known as specific electrical resistance or volume resistivity, is a key characteristic that quantifies how effectively it resists electric current. A substance that permits electric current to flow easily has a low resistance. The Greek letter is often used to signify resistivity (rho). Ohm-meters (m) are the metric unit for electrical resistivity.  For instance, the resistivity of a material is 1 m if it has sheet contacts on two of its opposing faces and has a 1 resistance between them.

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The answer is that the easiest method to obtain and yields the most accurate measure of the entire mass of the Milky Way galaxy is by using the orbits of stars around the central supermassive black hole.

This method, known as stellar dynamics, involves measuring the velocities and positions of stars over a long period of time and using this data to calculate the gravitational pull of the central black hole.

This method is the most accurate because it takes into account the entire mass of the galaxy, including dark matter, and has been used by the UCLA astronomers to measure the mass of the black hole at the center of our galaxy.

Other methods, such as measuring the rotation curve of the galaxy or using gravitational lensing, can also provide estimates of the galaxy's mass, but they do not take into account the entire mass of the galaxy and can be affected by uncertainties in the distribution of matter.

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Addition of vectors is done by adding the components of the vectors

The total speed of the fan  is approximately 9.43 m/s,

Direction of total wind 58° counterclockwise from the positive x-axis

The reason the value is correct is as follows:

The given parameters are:

The direction at which the fan blowing at 5 m/s is blowing = Easterly

The direction in which the fan blowing 8 m/s is blowing = Northerly

The total speed of the van, |v| ≈ 9.43 m/s

Required:

To find the total wind speed of the fans

Solution:

Taken the easterly direction as the ith component, and the northerly direction as the jth component,  the vector representing the speed of the fan is presented as follows

v = 5·i + 8·j

The magnitude of the total wind speed of the fan, |v| = √(5² + 8²) = √(89) ≈ 9.43

The total wind speed of the fan , |v| ≈ 9.43 m/s

The direction of the total speed with respect to the x-axis, θ, is given as follows;

θ = arctan(8/5) ≈ 58°

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To find

Acceleration is a change in what quantity Over time?

Explanation

Acceleration is defined as the change in velocity with respect to time interval.

Conclusion

The required quantity is

A. speed

Answer:

i'm sorry i'm not a physics student

The charge enclosed by a Gaussian sphere of radius r, where 0 < r < r, is q. This is because the charge enclosed by a Gaussian surface only depends on the total charge inside the surface, and not on the shape or size of the surface.

In this case, the conducting sphere of radius r is the same as the Gaussian sphere of radius r, so all of the charge q is enclosed by the Gaussian sphere. As the radius of the Gaussian sphere decreases to zero, the charge enclosed by the sphere also decreases to zero, since there is no charge inside the sphere

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The principle of a force pump is based on the concept of using a force, typically mechanical, to move fluid from one location to another.

The force is applied to the fluid, which in turn creates a pressure difference that drives the flow. This force can be generated by a variety of means, including a reciprocating piston, a rotating impeller, or a positive displacement mechanism.

The basic operating principle of a force pump is to convert the input mechanical energy into hydraulic energy, which is then transferred to the fluid being pumped. The fluid is forced to move from an area of lower pressure to an area of higher pressure, which results in the fluid being pumped from one location to another.

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Answer:

See below

Explanation:

vf = vo + at      subtract vo from both sides

vf - vo = at       now divide both sides by t

(vf-vo) / t = a

Resistance is any external force that acts against movement.

RESISTANCE:

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Answer:

c

Explanation:

Answer:

Brightness.

Explanation:

very bright.

Light energy with very high amplitude would be perceived as very bright or intense light.

Waves with a big maximum displacement or height relate to light energy with a very high amplitude.

This large amplitude equates to a greater intensity or brightness of light in terms of perception.

When high-amplitude light waves enter our eyes, they excite light-sensitive cells, such as the cones in our retinas, more powerfully.

As a result of the increased stimulation, the sense of a bright or powerful light source is formed. The magnitude of the light's amplitude is interpreted by the human visual system as a measure of its intensity, allowing humans to distinguish between dimmer and brighter light sources.

Thus, in human visual experience, light energy with a very high amplitude is related with a heightened feeling of brightness or intensity.

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Answer:

vector of zero magnitude

Explanation:

The displacement is a vector magnitude, therefore, in addition to being a module, it has direction and sense.

In this case it moved 350 m and then returned the same 350 m, so the total displacement is zero.

If we draw the vector, one has a directional direction to the right and the other direction to the left, therefore when adding the two vectors gives a vector of zero magnitude

Answer:

C  hit the ground at the same time

Explanation:

Both bullets have to fall the same VERTICAL distance and are affected by gravity the same way in this regard.