A car driving at 25 m/s, travels 318 m. How long does it take?

Answer:

25v

Explanation:

right on edge

Answer:

Ok let me figure this out

Explanation:

#9 asks what is the relationship between distance and force?

The relationships between the two are of the following: if you have distance you woulnt have force, and if there was no force then there is no distance, the 2 countereact each other and balance the scale

Answer:

Velocidad en m / s = 72,25 m / s

Explanation:

Dado

Distancia a recorrer por el coche de carreras = 87 Km

1 km = 1000 m

Por lo tanto, 87 km = 87000 m

Tiempo necesario para viajar 87 km / 87000 metros = 20 minutos o 20 * 60 = 1200 segundos

Velocidad en m / s = 87000/1200

Velocidad en m / s = 72,25 m / s

Answer: A.

Explanation: If you move it from A to D look closely its a straight line.

There are some traits of successful entrepreneurs, these are as follows:

1. He should be a highly motivated towards the work.

2. He sholud be creative in nature. He should think out of box and develop some ideas for the problem.

3. He should have clear vision for the future.

4. He should be very versatile and ready to adapt any changes.

5. He should be ready to take some risk.

6. He should have the ability of decision making and leadership quality.

For a radius of diatomic molecules is approximately 2.3 ×10-10 m, the  pressure in Pa is mathematically given as

P=0.134Pa

Generally, the equation for the ideal gas  is mathematically given as

PV=nRT

Therefore

\(P=\frac{1kT}{\sqrt{2}\pi(p)d^2}\)

\(P=\frac{1.38*10^-23*293}{\sqrt{2}\pi*(2*1.3*10^{-10})^2)*0.1}\)

P=0.134Pa

In conclusion, Pressure

P=0.134Pa

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The work John must do to move the bad horizontally to given distance is 2.5 J.

The given parameters;

The acceleration of the bag at the given distance and velocity is calculated as follows;

\(v^2 = u^2 + 2as\\\\1^2 = 0 + 2(a)(8)\\\\1 = 16 a\\\\a = \frac{1}{16} \\\\a = 0.0625 \ m/s^2\)

The work done in moving the bag to 8m is calculated as follows;

\(W = F \times d\\\\W = ma \times d\\\\W = 5 \times 0.0625 \times 8 \\\\W = 2.5 \ J\)

Thus, the work John must do to move the bad horizontally to given distance is 2.5 J.

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Answer:

packages proteins

Explanation:

Answer:

The endoplasmic reticulum ( ER) plays a key role in the modification of proteins and the synthesis of lipids. It consists of a network of membranous tubules and flattened sacs. The discs and tubules of the ER are hollow, and the space inside is called the lumen....

Answer:231.756757

Explanation:

(4)(343/2.96(2)= 231.756757

Answer:

The answer is 231.757 trust

Explanation:

star

Non-linear springs are helical coil springs that produce erratic amounts of force when they are subjected to a working load or torque.

A linear spring will always move along a straight line with a constant slope. The connection between force and displacement in a nonlinear spring is nonlinear. A nonlinear spring force vs. displacement graph with a variable slope will be more complex than a straight line. A nonlinear spring is stretched a distance A, with its restoring force being given by F=kx3, where x represents the displacement from equilibrium. There is a mass m fastened to its end.

Question

A nonlinear spring is compressed horizontally. The spring exerts a force that obeys the equation F(x) = Ax^1/2, where x is the distance Ax , where x is the distance from equilibrium that the spring is compressed and A is a constant. A physics student records data on the force exerted by the spring as it is compressed and plots the two graphs below, which include the data and the student's best-fit curves.

a. From one or both of the given graphs, determine A. Be sure to show your work and specify the units.

b i. Determine an expression for the work done in compressing the spring a distance x. ii. Explain in a few sentences how you could use one or both of the graphs to estimate a numerical answer to part (b)i for a given value of x.

c. The spring is mounted horizontally on a countertop that is 1.3 m high so that its equilibrium position is just at the edge of the countertop. The spring is compressed so that it stores 0.2 J of energy and is then used to launch a ball of mass 0.10 kg horizontally from the countertop. Neglecting friction, determine the horizontal distance d from the edge of the countertop to the point where the hall strikes the floor

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The common element among measures of speed, rate, and latency is time.

The only science that specifically studies time is physics, but even physicists acknowledge that time is one of the most challenging aspects of our universe to comprehend. However, time is typically seen as an ontologically "fundamental" or primary idea and is not composed of or dependent upon anything else, even in the most advanced and sophisticated physical models.

Time is typically defined by its measurement in the sciences; it is only what a clock says. Since physics in particular frequently requires extremely precise time measurements, time must be regarded as an infinitely divisible linear continuum and not as a quantized quantity (i.e. composed of discrete and indivisible units). Time can now be measured accurately to about 1015 seconds thanks to contemporary atomic time standards like TAI and UTC and extremely precise atomic clocks. This is equivalent to about 1 second of error in roughly 30 million years.

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The separation between the two cars is 86.12 m and your speed when you hit the police car is 32.56 m/s.

(a) To find the separation between the two cars when your attention returns, we need to calculate the distance the police car traveled during the 2.0 seconds you were distracted.
The initial separation between the two cars is 25 m, and both cars are traveling at a speed of 110 km/h.
First, let's convert the speed from km/h to m/s:
110 km/h * (1000 m / 1 km) * (1 h / 3600 s) = 30.56 m/s (rounded to two decimal places)
During the 2.0 seconds you were distracted, the police car traveled a distance of:
30.56 m/s * 2.0 s = 61.12 m (rounded to two decimal places)

So, the separation between the two cars when your attention finally returns is:
25 m + 61.12 m = 86.12 m (rounded to two decimal places)
Therefore, the separation between the two cars is 86.12 m.

(b) To find your speed when you hit the police car, we need to calculate the distance you traveled while braking for 0.40 s.
Both you and the police car are braking at an acceleration of 5.0 m/s^2.
The distance you traveled during the 0.40 seconds of braking is given by:
(1/2) * acceleration * time^2

For you:
(1/2) * 5.0 m/s^2 * (0.40 s)^2 = 0.40 m
Now, let's find your speed when you hit the police car. We can use the equation:
final velocity = initial velocity + (acceleration * time)
Your initial velocity is 30.56 m/s, and the time taken to brake is 0.40 s.
Your final velocity is:
30.56 m/s + (5.0 m/s^2 * 0.40 s) = 32.56 m/s
Therefore, your speed when you hit the police car is 32.56 m/s.

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If the current in a long straight wire is increasing, the current is induced in the circular loop will be generated in the nearby circular loop.

Faraday's Law states that the electromotive force (EMF) induced in a circuit is proportional to the rate of change of magnetic flux passing through it. As the current in the straight wire increases, the magnetic field around it strengthens, and the change in magnetic flux through the circular loop causes an induced current. The direction of this induced current is determined by Lenz's Law, which states that the induced current will flow in such a way as to oppose the change in magnetic flux causing it.

In this case, as the magnetic field due to the straight wire increases, the induced current in the circular loop will flow in a direction that generates a magnetic field opposing the increase in the straight wire's magnetic field. The magnitude of the induced current depends on the rate of change of the magnetic field, the loop's size, shape, and distance from the straight wire, as well as the resistance of the loop's material. If the current in a long straight wire is increasing, the current is induced in the circular loop will be generated in the nearby circular loop.

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The initial velocity of the ball thrown to a maximum height of 4.4 m is 9.29 m/s.

Velocity is the rate of change of displacement.

To calculate the initial velocity of the ball, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1 and solve for u

Hence, the initial velocity is 9.29 m/s.

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The ball's initial vertical speed is 86.24m/s.

This refers to the acceleration of a body in free fall under the influence of the earth's gravity. it can be represented as the rate of increase of velocity per unit of time. It is measured in meters per second square, m/s².It can be represented with the letter, g.

v = 2 * g * h

where,

v= speed / velocity

g = acceleration of gravity

h=  maximum height

g = 9.8 m/s²

h = 4.4 m.

Substituting the values in the formula we have:

v = 2 * 9.8 m/s² * 4.4 m

v = 86.24m/s.

Hence, the ball's initial vertical speed is 86.24m/s.

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(i) The magnitudes of the electric fields they separately create at a radial distance of 6 cm is \(E_{a}\)=\(E_b}\). and (ii) The magnitudes of the electric fields they separately create at radius 4 cm is \(E_{a} =E_{b}\), so the correct option is option b.

A conductor refers to a material that allows an electric current to flow through it with ease. In other words, it has a low electrical resistance. Conductors are materials that have a high number of free electrons that are able to move freely through the material. Examples of conductors include copper, aluminum, gold, and silver. These materials are commonly used in the electrical industry to make wires and other electrical components that need to conduct electricity. In addition to materials, a conductor can also refer to a person or an organization that is responsible for directing or leading an orchestra or a choir. In this context, a conductor is in charge of maintaining the ensemble's rhythm and intonation, and interpreting the score in a way that brings out the music's emotional content and intended meaning.

(i) The magnitude of the electric field created by a charged conductor is given by the formula E = \(\frac{kq}{r}\), where k is the Coulomb constant, q is the charge, and r is the distance from the center of the sphere.

For a good conductor, like sphere A, the charge will be distributed evenly on the surface of the sphere. So, the electric field at a radial distance of 6cm will be Eₐ = \(\frac{kq}{r^{2} }\) = \(k\frac{210^{-6} }{(619^{-2} )}^{2} =\frac{k}{72}\)

For an insulator, like sphere B, the charge is distributed uniformly throughout its volume. The electric field at a radial distance of 6cm will be \(E_{b}\)=  \(\frac{kq}{r^{2} }=k\frac{210^{-6} }{(619^{-2} )}^{2} =\frac{k}{72}\)

As we can see, the magnitudes of the electric fields created by both spheres are equal, so the answer is (b) \(E_{a} =E_{b}\)

(ii) For the radius of 4cm, the electric field created by sphere A and sphere B will

\(E_{a} =\frac{kq}{r^{2} }=k\frac{210^{-6} }{(410^{-2} )^{2} } =\frac{k}{16}\\E_{b} =\frac{kq}{r^{2} }=k\frac{210^{-6} }{(410^{-2} )^{2} } =\frac{k}{16}\\\)

As we can see, the magnitudes of the electric fields created by both spheres are equal at a radius of 4cm, so the answer is (b) \(E_{a} =E_{b}\)

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Electric force is present between proton and electron of an atom.

The attractive force between the electrons and the proton of the nucleus is called the electric force. This force attract electron towards the nucleus so that it can't escape from the atom easily so this force is very important for the atom.

An atom of this element changes when it forms an ionic bond because the number of electron decreases due to losing of electron in order to get stability. We know that ionic bond forms between atoms when electron is lost or gain by the atom.

So we can conclude that electric force is present between proton and electron of an atom.

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Answer:

C

Explanation:

the definition of mass is measure of the amount of substance in an object

The statement that correctly defines mass is that it is the amount of matter in an object. The correct option is C.

Matter is any material that has mass and occupy space by having volume in physical laws and general chemistry.

It is something with reference to weight. The majority of matter in the universe is made up of atoms, which are made up of subatomic particles.

Whether they are living or non-living, they contain matter. Matter is significant because it comprises everything around us. Matter cannot be created or destroyed but instead, it can only be transmogrified into a different form.

The quantity of matter in a physical body is defined as mass. It also represents the body's inertia, or opposition to acceleration when a net force is applied.

Thus, the correct option is C.

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Answer:

5 m/s

Explanation:

your welcome

The speed of a wave equals to Wavelength and Frequency. The SI unit of speed of wave is m/s. Thus, option D is correct.

The speed of wave is distance travelled by the wave in given time. It is related to both wavelength and frequency. Wavelength is measured in meters and frequency in hertz.

From the givens:

Frequency(f) = 2 Hz.

Wavelength(λ) = 10m.

Amplitude = 3m ( Amplitude does not affect the speed of wave)

Speed (v) = λ × f

               = 10 × 2

              = 20 m/s.

Therefore, the speed of the wave is 20 m/s. Hence, Option D is correct.

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A) The volume of helium gas can be calculated using the ideal gas law equation, PV = nRT.

B) The temperature after compression can be found using the combined gas law equation, P₁V₁/T₁ = P₂V₂/T₂.

A) To calculate the volume of helium gas, we can use the ideal gas law equation, PV = nRT. We are given the values for pressure (P = 0.390 atm), temperature (T = 11.8°C = 11.8 + 273.15 = 284.95 K), and the number of moles (n = 18.66 mol). Rearranging the equation, we have V = (nRT) / P. Substituting the given values, we can calculate the volume of the helium gas.

B) To find the temperature after compression, we can use the combined gas law equation, P₁V₁/T₁ = P₂V₂/T₂. We are given the initial pressure (P₁ = 0.390 atm), initial volume (V₁), initial temperature (T₁ = 284.95 K), and the final pressure (P₂ = 1.11 atm) after compression. We are also told that the gas is compressed to precisely half the volume (V₂ = V₁/2). Rearranging the equation and substituting the given values, we can solve for the final temperature (T₂) after compression.

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Maximum error in the result of the sum of measurement is equal to the sum absolute error of the individual observed measurements

(a) The maximum error in D is 0.09

(b) The standard error in D is approximately 0.034

The procedure for arriving at the above values is as follows;

The given measurements and the sited errors are;

A = 15.21 + 0.01

B = 10.82 + 0.05

C = 11.00 + 0.03

D = A + B + C

(a) Required parameter;

To calculate the maximum error in D

The equation for the propagation of error in addition is presented as follows;

Given that we have;

x = a + b

Therefore;

x + ±Δx = (a ± Δa) + (b ± Δb) = a + b ± (Δa + Δb)

∴ Δx = Δa + Δb

From the above formula, we have;

Where;

D = A + B + C

The maximum error in D = The sum of the maximum error in A, B, C

∴ The maximum error in D = 0.01 + 0.05 + 0.03 = 0.09

(b) Required parameter:

To find the standard error in D

The standard error is the sampling distribution's standard deviation, SD

Variance = SD²

The combined variance, SD² = The sum of the squares of individual standard deviations

Given that the standard errors represents the standard deviation, we get;

The combined variance, SD² = 0.01² + 0.05² + 0.03²

The combined variance, SD = √(0.01² + 0.05² + 0.03²) = 0.059

\(Standard \ error = \dfrac{SD}{\sqrt{n} }\)

Where n = 3, for the three measurement, we get;

\(Standard \ error = \dfrac{\sqrt{0.01^2 + 0.05^2 + 0.03^2} }{\sqrt{3} } \approx 0.034\)

The standard error in D is approximately 0.034

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Answer:

Real, inverted, equal to body size .

Answer:

Sample Response: The image created by the object is located on 2F behind the lens, real, inverted, and the same size as the actual object.

Explanation:

Edge 2021-2022 :)

Aerobic system is the energy pathway which is dominant when the body is at rest or during low-intensity, long-duration activity.

This is the prices in which substances such as carbohydrates and fats are burnt by the body in the presence of oxygen.

This is usually common in a scenario where the individual is either at rest or performing an activity which has a low intensity thereby making it the correct choice.

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ANSWER

False.

EXPLANATION

In radioactive decay (or nuclei decay), an unstable nucleus emits radiation into a nucleus that is table and has less energy and a lower mass.

Therefore, nuclei decay from a less stable form to a more stable form.

The answer is false.

Answer:

A

Explanation:

The kinetic energy decreases to half its original value.

a)

i. The force exerted on the piston by the air in the freezer is 240 N.

ii. The work done on the piston by the air as it pushes the piston 0.021 m into the cylinder is 5.04 J.

b) The change in the internal energy of the cylinder is 3486 J.

a)  

i. To calculate the force exerted on the piston by the air in the freezer, we can use the formula:

Force = Pressure * Area

Given:

Pressure (P) = 1.0 × \(10^5\) Pa

Area (A) = 2.4 ×\(10^(^-^3^) m^2\)

Substituting these values into the formula, we have:

Force = (1.0 × 10^5 Pa) * (2.4 ×\(10^(^-^3^) m^2)\)

      = 240 N

ii. To calculate the work done on the piston by the air in the freezer as the air pushes the piston, we can use the formula:

Work = Force * Distance

Given:

Force = 240 N

Distance (d) = 0.021 m

Substituting these values into the formula, we have:

Work = (240 N) * (0.021 m)

     = 5.04 J

b) To calculate the change in the internal energy of the cylinder, we can use the formula:

ΔU = mcΔT

Given:

Initial temperature (T1) = 21°C = 21 + 273 = 294 K

Final temperature (T2) = -18°C = -18 + 273 = 255 K

Thermal capacity (c) = 89 J/°C

Substituting these values into the formula, we have:

ΔU = (89 J/°C) * (294 K - 255 K)

   = 3486 J

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Explanation:

this might help you i think so

The presence of heavy elements in stars correlates with their positions because these elements show which star formed first, and a star's brightness and spectral type show where it is in the galaxy.

Heavy elements are present in population I stars. It is concentrated in the discs of spiral galaxies and typically contains the sun. It is also hot, youthful, and brilliant. The majority of them are found in spiral arms. In globular clusters and the outer galactic halo, where the concentration of heavy elements is relatively low, population II stars are born. The important information to compare the locations of the stars is therefore their abundances of heavy metals. Energy must be added in order for elements heavier than iron and nickel to develop.

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Answer:

No, a liter is equal to 1000 milliliters

ITS FALSE DUDE ......

HOPE THIS HELPS

Answer:C car

Explanation:

Answer:

Venus and Earth have the diameter nearly equal in size