You begin pushing the car forward from rest. Assume that your car has a mass of 813 kg. Neglecting friction, how long will it take you to push your car up to a speed of 3.48 m/s on a level surface if you exert a constant force of 207 N on it?

Answer: 37.326 kg

Explanation:
KE = 1/2 mv2,
1/2 m1(v1i)2 + 1/2 m2(vi)2 = 1/2 m1(v1f)2 + 1/2 m2 (v2f)
0.5*60*(5.6)^2 = 0/6*x*(7.1)^2
x = 37.3259

Answer:

v=fw 5.1x 10^4 = 1.1x10^8 w then divide get answer

Precursors are the building blocks or the starting materials that the body uses to synthesize neurotransmitters. The correct answer is 5. precursor.

Neurotransmitters are chemical messengers that transmit signals between nerve cells in the brain and the rest of the body.

Here,
Precursors are the building blocks or the starting materials that the body uses to synthesize neurotransmitters. The process of neurotransmitter synthesis involves a series of enzymatic reactions, where precursors are transformed into neurotransmitters and stored in synaptic vesicles.

When a nerve impulse reaches the end of a neuron, the synaptic vesicles release the neurotransmitters into the synaptic cleft, where they bind to receptors on the postsynaptic neuron and transmit the signal. The neurotransmitter molecules are then either reabsorbed by the presynaptic neuron or broken down by enzymes, such as those involved in neurotransmitter degradation.

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Friction affects the work done by machines by reducing the mechanical advantage of that machine.

MA = \(F_{o}\) / \(F_{i}\)

MA = Mechanical advantage

\(F_{o}\) = Output force

\(F_{i}\) = Input force

Mechanical advantage is the ratio of output force to input force in a system.

According to law of conservation of energy, input energy is equal to output energy. It is true in the machines also but some of the output energy is not necessarily asked of the machine. That energy which is not useful is heat produced due to friction.

Therefore, friction affects the work done by machines by reducing the mechanical advantage of that machine.

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Answer:

If the maximum temperature for a particular day is 26 degrees C and the minimum , temperature is 14 degrees C, the daily mean would be: 20 degrees C.

Explanation:

At equilibrium, the forces exerted by the front and back hooves must be equal, but the force exerted by the front hooves will be slightly greater than that of the back hooves.

What is equilibrium?
Chemical equilibrium refers to the situation inside a chemical reaction where both the reactants are present at levels that have no further habit of changing over time, preventing any discernible change in the system's properties. Whenever the forward reaction and the reverse reaction move forward at the same speed, this condition results. The forward as well as backward reactions typically have equal, if not zero, reaction rates. The concentrations of a products and reactants do not change on a net basis as a result. Dynamic equilibrium is the name given to such a situation.

This is due to the fact that the horse's center of gravity is closer to the front hooves, and thus the front hooves must exert a greater force in order to keep the horse balanced.

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The astronaut's height, as measured from the space station, will appear contracted due to relativistic effects. Due to relativistic length contraction, the astronaut's height, as measured from the space station, appears to be approximately 3.52 meters.

According to the theory of special relativity, objects in motion relative to an observer will experience length contraction along the direction of motion. In this case, the spaceship is moving at a speed of 0.9 times the speed of light (0.9 c) relative to the space station.

The length contraction factor, denoted by γ, can be calculated using the Lorentz factor:

γ = 1 / √(1 - v²/c²)

Where v is the velocity of the spaceship and c is the speed of light. Plugging in the values, we have:

γ = 1 / √(1 - 0.9²)

γ ≈ 1.92

To determine the astronaut's height as measured from the space station, we multiply her actual height by the length contraction factor:

Height (as measured from the space station) = Actual height × γ

Height (as measured from the space station) = 1.83 m × 1.92

Height (as measured from the space station) ≈ 3.52 m

Therefore, due to relativistic length contraction, the astronaut's height, as measured from the space station, appears to be approximately 3.52 meters.

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Larry Crabb, a Christian author and counselor, has a view of the two books, God's Word and God's Works. He believes that both books are revelations of God and that they should be studied together in order to gain a fuller understanding of Him.

Crabb argues that God's Word is a revelation of God's character and nature. It tells us who He is and what He is like. God's Works, on the other hand, are a revelation of God's power and love. They show us what He can do and what He is willing to do for us.

Crabb believes that we should study both books in order to gain a balanced understanding of God. He says that "the Bible is not enough, but it is essential." We need to study God's Word in order to learn about His character and nature, but we also need to study God's Works in order to see His power and love in action.

Crabb's view of the two books is a helpful reminder that God is not just a distant being who is far removed from our lives. He is a personal God who is involved in our world and who loves us deeply. By studying both God's Word and God's Works, we can come to know Him better and grow in our relationship with Him.

Here are some of the benefits of studying God's Word and God's Works together:

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Sir isaac newton proposed the three laws of motion and the law of gravity. which of the following best describes his law of gravity option b. Every object in the Universe attracts every other object.

Newton's law of gravity states that every object in the universe attracts every other object with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

This law explains the force that keeps the planets in orbit around the sun, as well as the force that holds us on the surface of the Earth. The law of gravity was one of Newton's most significant contributions to science and helped to revolutionize our understanding of the universe. The correct answer is option b.

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The amount of tension in the rope by using Newton's laws if The mass suspended on ropes is 7 kg, is 68.6 Newtons.

A fundamental characteristic of an object, its inertia is quantified by its mass, which is a basic indicator of the volume of substance inside the thing. Because mass is such a fundamental quantity and is difficult to define in terms of another, definitions of it frequently appear circular.

It is possible to define every mechanical quantity in terms of mass, length, and time. The SI unit for mass, denoted by the letter m, is the kilogram.

Given:

The mass of the foot and boot, M = 4 kg,

The mass suspended by ropes, m = 7 kg,

Calculate the tension on the rope as shown below,

Tension on the ropes = m × a

Tension on the ropes = 7 × 9.8

Tension on the ropes = 68.6 N

Thus, the tension on the boot and foot is 68.6 N.

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The solenoid contains 75 turns to create a 0.295 t magnetic field at the center of the solenoid.

To find the number of turns in the solenoid, we can use the formula for the magnetic field inside a solenoid:

B = μ₀ * n * I

where B is the magnetic field strength (0.295 T), μ₀ is the permeability of free space (4π x 10⁻⁷ Tm/A), n is the number of turns per unit length (turns/m), and I is the current (7.45 A).

n = B / (μ₀ * I)
n = 0.295 T / (4π x 10⁻⁷ Tm/A * 7.45 A)
n ≈ 625.57 turns/m

Now, we need to find the total number of turns in the solenoid. Since the solenoid has a length of 12.0 cm, we need to convert that to meters:

Length = 12.0 cm * (1 m / 100 cm) = 0.12 m

Total turns = n * Length
Total turns = 625.57 turns/m * 0.12 m
Total turns ≈ 75.07

Since the number of turns must be a whole number, we can round this to the nearest whole number, which is 75 turns. So, the solenoid contains 75 turns.

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The cyclotron frequency (ω) of an electron in the ionosphere is 1.3 MHz. To find the magnetic field flux density (B), we can use the formula ω = eB/m, where e is the electron charge, B is the magnetic field flux density, and m is the electron mass.

Rearranging the formula, we get B = ωm/e. Substituting the given values, we get B = (1.3 x 10^6) x (9.11 x 10^-31)/(1.6 x 10^-19) = 9.1 x 10^-5 T = 91 µT (microtesla).

To find the magnetic field intensity (H) in amperes per meter (A/m), we can use the formula H = B/μ, where μ is the permeability of free space (4π x 10^-7 H/m).

Substituting the calculated value of B, we get H = (9.1 x 10^-5)/(4π x 10^-7) = 22.9 A/m. Therefore, the magnetic field flux density in µT is 91 µT, and the magnetic field intensity in A/m is 22.9 A/m.

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Answer:

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 8 × 2

We have the final answer as

Hope this helps you

Answer:

explain this

Explanation:

Answer:

Resistance / Edge 2022

Explanation:

This is late, but just in case someone needs the answer. Hope this helps!

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Tungsten metal is used exclusively for making the filament of electric bulbs because it has a very high melting point

Tungsten metal is used exclusively for making the filament of electric bulbs because it has a very high melting point. Due to its high melting point, the tungsten filament can be kept white-hot without melting away

Tungsten wire is used as the filament in light bulbs. It glows white-hot as current passes through it.

Tungsten is used in light bulbs because its high resistivity converts electric energy into light and heat.

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Answer: see below for work done

To get the car's average speed, all you really need to know is

the total distance travelled by the car

the total time it needed to cover that distance

In your case, you know that the car travelled for a total of 80 miles and that it needed 100 minutes to do so.

Since you need to express the average speed in miles per hour, not miles per minute, you're going to have to use a simple conversion factor to get you from minutes to hours.

First, calculate the average speed in miles per minute

\(v_{avg=\frac{d_{total}}{t_{total}}\)

\(v_{avg=\frac{80 miles}{100 minutes}\) = 0.8 mi/min

Convert to miles per hour

\(\frac{0.8 miles}{1 minute}\) x \(\frac{60 minutes }{1 hour}\)= 48mph

if you need this in metres per second you would take 48mph divide it by 2.237 =21.46m/s

if you need this in kilometres per hour you would take 48mph multiply by 1.609 =77.25km/h

The total charge that can be delivered by the series combination of ten batteries before recharging is required depends on the capacity of each battery.

Without knowing the capacity of the batteries, it is not possible to determine the total charge.

In a series combination, the voltage of the batteries adds up, but the total charge capacity remains the same as that of a single battery. So, if the capacity of each battery is C coulombs, the total charge that can be delivered by the series combination is also C coulombs. Therefore, without knowing the capacity of each battery, it is not possible to determine the total charge.

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Answer:

A

Explanation:

They drove 30km north. The displacement adds up to 25km therefore making the distance greater

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Answer:

Central City is the county seat and the most populous municipality of Gilpin County. The city is a historic mining settlement founded in 1859 during the Pike's Peak Gold Rush and came to be known as the "Richest Square Mile on Earth".

The angle from the center at which the first bright band (not counting zero) of a light wave will appear is approximately 0.19°.

The angle at which the first bright band (not counting zero) will appear can be calculated using the formula for the location of the bright fringes in a double-slit experiment:

sin θ = mλ/d

where θ is the angle from the center to the bright fringe, m is the order of the fringe (not counting the central maximum, which is m=0), λ is the wavelength of the light wave, and d is the distance between the two slits.

Plugging in the given values, we get:

sin θ = (1)(500 nm)/(0.15 mm) = 0.00333

Taking the inverse sine of this value, we get:

θ = sin⁻¹(0.00333) ≈ 0.19°

So the angle from the center at which the first bright band (not counting zero) will appear is approximately 0.19°.

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Two infinite sheets of current flow parallel to the y-z plane. The left-hand sheet, which intersects the x-axis at x = 0, consists of an infinite array of wires parallel to the z-axis with a density of n = 910 wires/m and current per wire of IL = 0.14 A in the +zdirection.

The right-hand sheet, which intersects the x-axis at x = a = 12 cm, is identical to the left-hand sheet, except that it has a current per wire of IR = 0.14 A in the -z-direction.

(a) Calculate the y-components of the net magnetic field in the following places:

x1 = -15 cm, x2 =6 cm, and x3 = 24 cm. (The x- and z-components of the B-field are zero.)

B(x1)y = T

B(x2)y = T

B(x3)y = T

Please check the attached file for a detailed answer.

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Answer:

definition of matter is that matter takes up space and has mass

Answer:

Answer is A

Speed = Wavelength × Frequency

Explanation:

Googled it

Answer:

860km

Explanation:

2× 430 = 860km

the rate is 430km per hr. 2 hours means you multiply by 2

From the table shown we can see that the substance that has a density of 10.50g/cm³ is Silver. Hence the required substance is silver

Density is the ratio of the mass of an object to its volume. Mathematically,

Density = Mass/Volume

Given the following from the question

Mass = 273g

Volume of water = 26mL

Convert the volume to cm³

1ml = 1cm³ Hence;

26mL = 26cm³

Get the density of the object

Density = 273g/26cm³

Density = 10.50g/cm³

Hence the required density is 10.50cm³. From the table shown we can see that the substance that has a density of 10.50g/cm³ is Silver. Hence the required substance is silver

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Answer:

They are equal

Explanation:

Multiply the mass by the velocity.

The rate οf change οf temperature with respect tο time is apprοximately -0.4223 K/min.

Tο find the rate οf change οf temperature (T) with respect tο time (t) at a certain instant, we can use the ideal gas law equatiοn PV = nRT and differentiate it with respect tο time:

PV = nRT

Taking the derivative with respect tο time:

P(dV/dt) + V(dP/dt) = nR(dT/dt)

Since we are interested in finding dT/dt, we can rearrange the equatiοn:

(dT/dt) = (P(dV/dt) + V(dP/dt)) / (nR)

Substituting the given values:

P = 7.0 atm

dV/dt = -0.17 L/min (negative sign indicates a decrease in vοlume)

dP/dt = 0.11 atm/min

n = 10 mοl

R = 0.0621 L·atm/(mοl·K)

(dT/dt) = (7.0 atm * (-0.17 L/min) + 12 L * 0.11 atm/min) / (10 mοl * 0.0621 L·atm/(mοl·K))

Calculating the rate οf change οf temperature:

(dT/dt) ≈ -0.4223 K/min

Therefοre, at that instant, the rate οf change οf temperature with respect tο time is apprοximately -0.4223 K/min.

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The train moves with common Velocity, then the velocity of 5 Car train is 2m/s

There are in total 5 identical train cars which collide with each other after some interval of time

Let the Train Cars be: A,B,C,D and E

So, Velocity of A,B and C = 2 m/s

Velocity of D = 4 m/s

Velocity of E = 0 m/s

Let's Assume that the mass of all the carts is 'x', as all are identical Coaches

The common Velocity of the 5 Car train (A+B+C+D+E) if they collide with each. other we have to find

We will use the law of conservation of momentum, which states that the initial momenta of objects = Final momenta of objects

m1u1 + m2u2 = m1V1 + m2v2

Given, Mass of Train Cars = x (Assumed)

Velocity of A,B,C = 2m/s

So, they are travelling on the track, so if they collide with D, their Initial momenta will be the same as final momenta.

As Given, their final velocity are equal. So,

a(ip) + b(ip) + C(ip) + d(ip) = a(vp) + b(vp) + C(vj)

Where, IP = Initial momentum

VP = final momentum

(2*x) + (2*x) + (2*x) + (4*x)

2x + 2x + 2x + 4x = v (x+x+x+x)

10x = 4xv

v = 10x/4x =

v = 2.5mps

Hence, The final velocity of (A,B,C,D) or Four Car train = 2.5 m/s

Now, After sometime travelling with same velocity, they collide with a stationary train car of same mass and it also start moving with same velocity.

aip + bip + Cip + dip + eip = avp + bvp

(10x) + (0*x) = (v*x) + (v*x) + (v*x) + (v*x)

(10x) + 0 = v(x+x+x+x+x)

10x = 5xv

v = 10x/5x

v = 2 mps

Hence, The speed of 5 Car train (A+B+C+D+E) = 2m/s

If the train moves with common Velocity, then the velocity of 5 Car train is 2m/s

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