An engineer designing a system to control a router for a machining process modelima the system so that the router's acceleration (in /s2) during an interval of time is given by a = -0.4v, where v is the velocity of the router in in/s. When t=0, the position is so and the velocity is v2 in/s. What is the position at t-3 s? (10 points)

Answer:

True

Explanation:

It definetly is because, if we are biased it sets us up to fail on some things.

Answer:

\(Vf^2=Vo^2+2aS\\(0m/s)^2=(4.67m/s)^2+(2*-10m/s^2)S\\-(4.67)^2 m^2/s^2=-20m/s^2*S\\S=(21.8089/20) m\\S=1.090445 m\\\)

Answer:

Electron shell

Nucleus

Neutrons

Explanation:

An atom is made up of three fundamental subatomic particles which are the protons, neutrons and electrons.

Answer:

4.41N or 4.5N (check explanation)

Explanation:

450g = 0.45kg

F = ma

Using 10m/s² = 10(0.45) = 4.5N

Using 9.8m/s² = 9.8(0.45) = 4.41N

Answer:

B. Activation-Synthesis

Explanation:

Apex

The de- Broglie wavelength of 2.80× 10⁻¹⁰ m is associated with a momentum of 2.36 × 10⁻²⁴ Kg m/s. The kinetic energy will be 3.07 × 10⁻¹⁸ J which is equal to 19.015 ev.

De-Broglie proposed  the dual nature of matter which stated that matter can behave as both wave and particle. For a matter wave, the wavelength of the wave will be the ratio of the Planck's' constant h and its momentum p.

thus, λ = h/p

Given the wavelength = 2.80× 10⁻¹⁰ m.

momentum p = h/λ

= 6.62 × 10 ⁻³⁴ / (2.80× 10⁻¹⁰ m)

=  2.36 × 10⁻²⁴ Kg m/s

The kinetic energy ke = 1/2 mv² = p² /2m.

mass of an electron = 9.1 × 10 ⁻³⁴ Kg.

hence, Ke =  (2.36 × 10⁻²⁴ Kg m/s )² /  9.1 × 10 ⁻³⁴ Kg

                 = 3.07 × 10⁻¹⁸  J.

1 J = 6.24 × 10¹⁸ ev.

thus, KE in ev = 3.07 × 10⁻¹⁸  J ×  6.24 × 10¹⁸ ev = 19 ev.

Therefore, the kinetic energy of the electron is 19 ev.

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Answer:

The characteristics that determine how easily two substances change temperature are:

The volume and density of the substances and the amount of time they are in contact do not directly affect how easily they change temperature.

Explanation:

The power output is given 2000 watt and voltage is 240 v. Then the current through the heating element is 8.3 A and the resistance is 29 ohms.

The power used by an object is the rate of its work done or energy. It is the energy divided by time. The power output in a circuit is the product of the potential difference V and current I.

P = I V

Given,

P = 2 kw = 2000 W

v = 240 V.

Then I = P/v

I = 2000 w/240 v = 8.3 A.

According to Ohm's law, voltage v is the product of the current and resistance through the material.

hence,

V = I R

then, R = V/I

R = 240 V/8.33 A

  = 29 Ω.

Therefore, the current and resistance through the heating element are 8.3 A and 29 ohms respectively.

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Answer: The statement that is a likely impact of stronger than normal trade winds in the Pacific Northwest to the United States is "Jet stream would be displaced southwards causing heavy rain and flooding."

Explanation: Hope this helps!

Hope this answer helps you

Answer:

λ = 3.04 m

Explanation:

       \(v = \lambda* f (1)\)

       \(\lambda_{w} = \frac{v_{sw}}{f} = \frac{1500m/s}{4941/s} = 3.04 m (2)\)

Answer:

290 N of horizontal force

Explanation:

To calculate the Net force of an object you find the sum of each force.

225 N + 165 N = 290 N

Since the reference direction is horizontal, that's how i got 290 N of horizontal force.

I hope you found this helpful...

The net force on the canoe is equal to 390N when both forces act in the same direction.

The net force can be defined as the vector sum of all the forces acting on a particle. The net force is a single force indicating same the effect of the original forces on the motion of the particle. The net force is equal to the same acceleration as all actual forces together.

The net force will become the resultant force. The net force has the same effect on the rotational motion as all actual forces together.

If the two acting forces on the canoe are acting in the same direction then the net force il be equal to the sum of these two forces.

Given, the one horizontal force on the canoe, F₁ = 225N

The other horizontal force on the canoe, F₂ = 165 N

The net force on the canoe, F = F₁ + F₂ = 225 + 165 = 390 N

Therefore,  the net horizontal force on the canoe is equal to 390 N.

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The average rate at which point A has moved away from point b since 50 ma is 240 km/my.

Magnetism is a physical quality mediated by a magnetic field that refers tο the ability to create attracted and repulsive οccurrences in other substances. Diamagnetic materials are thοse that magnetize freely when put in a magnetic field. Hοwever, the magnetization is oriented in the οpposite direction as the magnetic field. These materials' magnetism is referred to as diamagnetism.

To calculate the average spreading rate of point A with respect to point B we have to find the distance of Point A from point B.  For this we have the scale of the map i.e. 3000 km. By measuring the length of red bar, I got 3cm= 3000km . It means 3cm on the map equals to 3000km on the ground. So now for calculating the distance of point A from point B, we have to measure the length. The length i got is 12cm. From the scale ,

3cm= 3000km

1cm= 1000km

12cm= 12000km

Now we have distance =  12000km

time= 50my

so the average rate of spreading = distance / time

= 12000/ 50

=240 km/my

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Complete question:

No, when your car accelerates away from a stop sign, you feel like you're being pushed back into your seat. There is no force pushing you backward, just the seat pushing forward.

In the inertial reference frame, the only force acting on occupants while sitting inside the accelerating car is the force that causes occupants to accelerate which is given by mass times the acceleration. So from the inertial reference frame occupant accelerates.

What is the acceleration?

One of the important notions like Speed and Velocity, in Physics that is used to explain motion and to solve problems concerned to it, is called the acceleration.

No, when your car accelerates away from a stop sign, you feel like you're being pushed back into your seat. There is no force pushing you backward, just the seat pushing forward.

In the inertial reference frame, the only force acting on occupants while sitting inside the accelerating car is the force that causes occupants to accelerate which is given by mass times the acceleration. So from the inertial reference frame occupant accelerates.

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Answer:

hohdoqjqwfojiqjwiojdq

Explanation:

huehqofjoiqjdoiwjqiojfiwjfiojeqojefiqjojeqiojoiewqdqwwqdwqd

The coefficient of static friction between the block of wood and the table is 0.449.

The weight of the block of wood is Mg = 4.0 kg × 9.81 m/s^2 = 39.24 N.

The coefficient of static friction μs is given by the equation μ_s = fs/N, where N is the normal force from the table.

Since the block is not accelerating vertically, we know that N = Mg, so we have:

μs = fs/N = 17.64 N / 39.24 N = 0.449

Therefore, the coefficient of static friction between the block of wood and the table is 0.449.

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Orbital speed is defined as Fg=GmM(R+h)2, where m is the satellite's mass and h is its height above the planet's surface.

The orbital mobility is given by the formula g(R+h) = gr. Orbital velocity refers to the velocity needed to counteract the gravitational pull on the moon with its inertia, or propensity to continue moving.

The planetary velocity of a satellite that orbits the Earth is determined by the height of the satellite above the planet. The needed orbital velocity increases with the distance from the Earth. At lower altitudes, a satellite encounters traces of Upper orbit, which causes drag.

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It only moves forward because there is a net force forward.

Let us note that when an object is acted upon by a system of forces, the object only moves in the direction of the net force.

We have an animal acted upon by the following forces;

The upwards and downwards forces are exactly balanced so the animal neither moves upwards or downwards.

However, the animal does move forward because there is a net force that pushes the animal forward.

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Answer:C. It only moves forward because there is a net force forward.

Explanation:

Answer:

The kinetic molecular theory of matter states that all particles of matter are in constant motion.

Explanation:

Kinetic means active and lively and has to do with the motion of material bodies and forces.

Please give Brainliest.

how much pressure is created when a force of 55N is applied over an area of 8m²

We have been asked to determine the pressure exerted when given magnitude of force acting on given area.

\(☄\bf \qquad \mathcal{Pressure} = \mathcal{\dfrac{Force}{Area}}\)

Put all given value we obtain

\(\qquad \sf \longrightarrow \:Pressure \: = \dfrac{55}{8} \\ \\ \\ \qquad \sf \longrightarrow \:Pressure \: = \cancel\dfrac{55}{8} \\ \\ \\ \qquad \sf \longrightarrow \:Pressure \: = 6.875 \: Pa.\)

Therefore,

Answer:

Star 1 2 hours

35

Explanation:

Answer:

the answer would be 35 degrees :))))

Explanation:

it was the correct on the quiz,,, good luckk :3!!

Answer:0.2 m/s^2

Explanation:

mass=18.15kg

Force=3.63N

Acceleration=force ➗ mass

Acceleration=3.63 ➗ 18.15

Acceleration=0.2 m/s^2

A girl pushes a wagon of mass 18.15 kg with a force of 3.63 N, so the acceleration of the wagon will be 0.2 m/s².

In mechanics, acceleration is the measure of how rapidly an object's velocity changes over time. Accelerations as a vector quantity. An object's acceleration depends on the direction of the net force exerted on it.

A vector quantity, acceleration, is something that has both a magnitude and a direction. As a vector quantity, velocity is also. The ratio of the velocity vector change over a time interval to that interval is the definition of acceleration.

Mass, m =18.15 kg

Force, f = 3.63 N

Force = m × a

a= f / m

a =3.63 / 18.15

a = 0.2 m/s²

Hence, the acceleration of the wagon will be 0.2 m/s².

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The current remains the same in all parts of a series circuit.

The correct option is B.

A circuit is a complete path for the flow of electric current.

A series circuit is a circuit that the component of the circuit are connected end-to-end and the flow of current is in one direction.

Another form of connection is the parallel connection in which current flows through alternate paths.

In a series circuit, the flow of current is constant and remains the same in all parts of a series circuit. However, the voltage across the circuit varies.

In a parallel circuit,  the voltage is constant and remains the same in all parts of a parallel circuit.  However, the flow of current across the circuit varies.

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Answer:

approximately 6.67 m/s

Explanation:

the equation for speed when given momentum and mass is

Speed=momentum/mass

Answer:

Below

Explanation:

Momentum = m * v

 40              =   6 * v

40/6 = v = 6  2/3   m/s     ( or ~  6.7 m/s)

Explanation:

Turbines might cause noise and aesthetic pollution.

Although wind power plants have relatively little impact on the environment compared to conventional power plants, concern exists over the noise produced by the turbine blades and visual impacts to the landscape.

The inflexibility, variability, and relative unpredictability of wind power as a means for electricity production, are the most obvious barriers to an easy integration and widespread application of wind power." Thus, the uncertainty of the wind requires a system that is always available to replace all the electrical output created by the wind turbine system. In other words, it is too expensive to have wind turbines lying around that don't do anything.

Answer:

12kWhr

Explanation:

Energy = Power * Time

Power = 4kW

Time = 3hrs

Substitute into the formula

Energy used up = 4kW * 3hrs

Energy used up = 12kWhr

The mass of the planet is  5.98 × 10^24 kg.

To calculate the mass of the planet, we can use Kepler's Third Law of Planetary Motion. This law states that the square of the period of revolution of a planet around the sun is directly proportional to the cube of the semi-major axis of its orbit.

First, we need to convert the period of the satellite's orbit to seconds. We know that there are 60 minutes in an hour, so the period can be expressed as (6 × 60 + 12) minutes, which equals 372 minutes. Multiplying this by 60 seconds, we get a period of 22,320 seconds.

Next, we need to find the semi-major axis of the orbit. In a circular orbit, the semi-major axis is equal to the radius of the orbit. Therefore, the semi-major axis is 8.8 × 10^6 m.

Now, we can apply Kepler's Third Law to calculate the mass of the planet. The formula is T^2 = (4π^2/GM) × a^3, where T is the period of revolution, G is the gravitational constant, M is the mass of the planet, and a is the semi-major axis of the orbit.

Rearranging the formula, we can solve for the mass of the planet:
M = (4π^2/G) × a^3 / T^2

Plugging in the values, we get:
M = (4 × π^2 / 6.67430 × 10^-11) × (8.8 × 10^6)^3 / (22,320)^2

Evaluating this expression, we find that the mass of the planet is approximately 5.98 × 10^24 kg.

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Answer: The particle model, because only high-energy frequencies of lights can remove electrons.

Explanation: just did the test and got it right :)

Answer:

औडंठः की दुनिया कार्टून दर्शन होली है और यह बियर का अच्छा विकल्प है। विकल्प है। यो कुरा मेरो आफ्ना लागि विचार र त्यहाँको बडेमाको बिल्डिङ भित्र म जिन्दगी एक यात्रा हो कहाँबाट शुरु भइ कहाँ पुगेर अन्त हुन्छ

Answer:

the answer is 52.15cm×35.5