Which lists three parts of sunlight that make up some of the visible spectrum?

Explanation:

The work done by a constant force is given by the equation W = Fd, where W is the work done, F is the force, and d is the distance moved.

The initial force of 5 N does no work, because it is balanced by the friction force. So, the work done by the increased force of 12 N can be found as follows:

W = Fd = 12 N x 2 m = 24 J

The work done on an object is equal to the change in its kinetic energy, so the increase in the block's kinetic energy is 24 J.

Answer:

The mass is essentially "how much stuff" is in an object. ... Weight: There is a gravitational interaction between objects that have mass. If you consider an object interacting with the Earth, this force is called the weight. The unit for weight is the Newton (same as for any other force).

Explanation:

Answer:the difference is weight is the force exerted from an object by gravity

Explanation:

And mass is how much “stuff” is in an object

Answer:

This problem involves the concept of a random walk, which is a mathematical model of a path consisting of a succession of random steps.

The question asks for the distance, R(n), from the center of a star after n steps of a photon, assuming a 2D random walk.

The random walk in two dimensions has a step length of A_i and the direction of the steps is uniformly distributed in [0, 2π). The change in position after each step can be written in Cartesian coordinates (Δx, Δy), where Δx = A_i cos(θ_i) and Δy = A_i sin(θ_i).

The displacement from the center after n steps is given by the vector sum of all the individual steps. This vector sum can be written in terms of its Cartesian coordinates, (X, Y), where X = Σ Δx and Y = Σ Δy. This sum over n random vectors is itself a random variable. The net displacement R(n) from the center of the star after n steps is given by the magnitude of the net displacement vector:

R(n) = √(X² + Y²)

Because each step is independent and has a random direction, the expected value of the cosine and sine for any step is zero. This means that the expected values of X and Y are both zero.

However, the mean square displacement is not zero. Because the steps are independent, the mean square displacement in each direction is additive. For a 2D random walk:

<X²> = Σ <(Δx)²> = n <(A cos θ)²> = n A²/2

<Y²> = Σ <(Δy)²> = n <(A sin θ)²> = n A²/2

Because <X²> = <Y²>, we can write:

<R²> = <X²> + <Y²> = n A²

So, the root mean square distance (the square root of the mean square displacement) after n steps is:

R(n) = √(<R²>) = √(n) * A

Therefore, the distance R(n) that the photon is expected to be from the center of the star after n steps grows as the square root of the number of steps, with each step having a length A. Please note that this result holds for a 2D random walk. A real photon in a star would be performing a 3D random walk, which would have slightly different characteristics.

Answer:

The correct answer is "121.36 meters and 2.40 MHz".

Explanation:

Given:

Red shift,

$\frac{v}{c}=\frac{\lambda -{\lambda }_0}{{\lambda }_0}=0.03$

Wavelength,

$\lambda =125meters$

The observed frequency will be:

⇒ $f=\frac{c}{\lambda }$

      $=\frac{3\times {10}^8}{125}$

      $=24\times {10}^5$

      $=2.40\times {10}^6$

      $=2.40MHz$

hence,

The Emitted wavelength will be:

⇒ $\frac{125-{\lambda }_0}{{\lambda }_0}=0.03$

   $\frac{125}{{\lambda }_0}-1=0.03$

         $125=1.03{\lambda }_0$

           ${\lambda }_0=\frac{125}{1.03}$

                $=121.36m$

Answer:

6.309573e+16 joule is released by an earthquake of magnitude 8

Answer:

An earthquake with a magnitude of 8 on the Richter scale releases 6.309573e+16 J of energy.

Explanation:

An earthquake with a magnitude of 8 on the Richter scale releases 6.309573e+16 J of energy.

The change in the Gibb's free energy per mole (G) is 1.96 J.

The given parameters:

The change in the Gibb's free energy per mole (G) is calculated as follows;

$\mathrm{\Delta }G=V(P_2-P_1)$

where;

V is the volume of the ice

$$\begin{gathered} Density=\frac{Mass}{Volume} \\ Volume=\frac{Mass}{Density} \\ Volume=\frac{18\times {10}^{-3}kg}{917m^3} \\ Volume=1.96\times {10}^{-5}{m}^3 \\ Volume=1.96\times {10}^{-5}{m}^3\times \frac{1000L}{m^3} \\ Volume=0.0196L \end{gathered}$$

Change in pressure;

$P_2-P_1=2.0bar-1.0bar=1.0bar=0.987atm$

The change in the Gibb's free energy per mole (G);

$$\begin{gathered} \mathrm{\Delta }G=V(P_2-P_1) \\ \mathrm{\Delta }G=0.0196L\times 0.987atm \\ \mathrm{\Delta }G=0.0193L.atm \\ 1L.atm=101.325J \\ \mathrm{\Delta }G=0.0193L.atm\times \frac{101.325J}{1L.atm} \\ \mathrm{\Delta }G=1.96J \end{gathered}$$

Thus, the change in the Gibb's free energy per mole (G) is 1.96 J.

Learn more about Gibb's free energy here: https://brainly.com/question/10012881

Answer:

 n = 291 people

Explanation:

To solve this interesting problem we are going to take some data from the tables, the density of 7075 aluminum is 2.8 103 kg / m³, the density of 316 stainless steel is 7980 kg / m³, where we have selected one of the most used alloys in for its resistance.

The average mass of a passenger is mo = 80kg and the Boeing 747 aircraft can carry 550 passengers and a crew of 18 people with a length of 70.66 m,

Let's start by calculating the mass of the empty plane and the mass of the passengers

         ρ_Al = m_Al / V

         m_Al = ρ_Al V

         m_passenger= #_pasajeros 80

         m_passenger = 550 m₀

The total mass of the plane is

          M = m_passengers + m_Al

If the plane is built face to face, the mass of this material is

        ρ_Acero = m_steel / V

the total mass of avino is

         M = m_pasajeros` + m_steel

As they indicate the total mass of the plane must remain constant

         m_passengers + m_Al = m_passengers` + m_steel

let's substitute the values

         550 m₀ + 2.8 103 V = n m₀ + 7.98 103 V

where V is the volume of the material used which is the same in both cases

         n = 550 mo + (2.8 - 7.98) 103 V = n mo

         n = n = 550 + (2.8 - 7.98) 103 V / mo

The calculation of the volume of material used depends on the thickness of the sheet and the resistance of the material, if it assumes that it has the same thickness, e = 1 cm, approximate the volume to the length of the circle by the length of the cylinder by the thickness

         V = (2π r) L e

  the diameter of the plane approximately the height of the person

         d = 1.8 m

         V = 2π (1.8 / 2) 70.66 1 10⁻²

         V = 3.9957 m³

  we substitute

          n = 550 - 5.18 10³ (3.9957) / 80

          n = 550 - 258.7

          n = 291 people

The reactive force when a fish swims through water is the force of the water on the fish. This is an example of Newton’s third law of motion which states that for every action, there is an equal and opposite reaction. The active force is the fish pushing against the water, so the reactive force would be the reverse, the equal force of the water pushing back on the fish.

The right sphere will acquire an equal and opposite net positive charge to balance the negative charge on the left sphere.

Since the left sphere is attracted to the positively charged rod, it means that the left sphere acquires a temporary negative charge due to induction.

The positive charge on the rod repels electrons in the left sphere, causing them to move away from the rod side and accumulate on the opposite side, resulting in a net negative charge on the left sphere.

According to the principle of charge conservation, the net charge on the system must remain zero. Therefore, the right sphere acquires an equal and opposite net positive charge to balance the negative charge on the left sphere.

More on electrostatic attraction can be found here: https://brainly.com/question/14889552

#SPJ1

Answer:

127.53 J

Explanation:

Given that

Height of the floor, h = 1.3 m

Acceleration due to gravity, g = 9.81 m/s²

Mass of the box, m = 10 kg

To find the work done on the box by the janitor, we use the formula for potential energy. Remember that potential energy is actually the energy stored in an object as a result of its position.

P.E = mgh, substituting each parameters for its value, we then have

P.E = 10 * 9.81 * 1.3

P.E = 127.53 J

Therefore, we can conclude that the amount of work done on the box by the janitor is 127.53 J

Based on the information, it should be noted that the resistance R is 0.5 Ω.

When S1 and S2 are open, i leads e by 30°. In this case, the circuit consists of only the inductor (L) and the capacitor (C) in series. Therefore, the impedance of the circuit can be written as:

Z = jωL - 1/(jωC)

Since i leads e by 30°, we can express the phasor relationship as:

I = k * e^(j(ωt + θ))

Z = jωL - 1/(jωC) = j(120π)L - 1/(j(120π)C)

Re(Z) = 0

By equating the real parts, we get:

0 = 0 - 1/(120πC)

Let's assume that there is a resistance (R) in series with the inductor and capacitor. The impedance equation becomes:

Z = R + jωL - 1/(jωC)

Z = R + jωL

Im(Z) = ωL > 0

Substituting the angular frequency and rearranging the inequality, we have:

120πL > 0

L > 0

This condition implies that the inductance L must be greater than zero.

When S1 and S2 are closed, i has an amplitude of 0.5 A. In this case, the impedance is:

Z = R + jωL - 1/(jωC)

Since the amplitude of i is given as 0.5 A, we can express the phasor relationship as:

I = 0.5 * e^(j(ωt + θ))

By substituting this phasor relationship into the impedance equation, we can determine the value of R. The real part of the impedance must be equal to R:

Re(Z) = R

Since the amplitude of i is 0.5 A, the real part of the impedance must be equal to 0.5 A: 0.5 = R

Therefore, the resistance R is 0.5 Ω.

Learn more about resistance on

https://brainly.com/question/17563681

#SPJ1

The force that your textbook exerts on the Earth is immeasurably small, since the mass of the textbook is much, much smaller than the mass of the Earth.

Force is a push or pull on an object due to its interaction with another object. Force is a vector quantity that is described by its magnitude and direction. It is typically measured in Newtons and represented by the symbol F. Force can cause an object to accelerate, change its direction, or change its shape. Force is an integral part of physics and is governed by the laws of motion.

This force is equal to the downward pull on the textbook but in the opposite direction, meaning that it is trying to pull the Earth up, canceling out the downward force. However, since the force exerted by the textbook is so small, it is not enough to counteract the pull of gravity, and thus the textbook falls.

To learn more about force
https://brainly.com/question/12785175
#SPJ4

Answer:

Ultrasound

Explanation:

ultra = above     ultrasound = above hearing sound

Explanation:

$\underset{―}{\boxed{{\displaystyle \mathbf{O}\mathbf{p}\mathbf{t}\mathbf{i}\mathbf{o}\mathbf{n}\mathbf{A}\mathbf{!}\mathbf{!}}}}$

Here,

We have to find the equivalent resistance of the circuit.

Here, ${\mathrm{R}}_1$ and ${\mathrm{R}}_2$ are connected in series, so their combined resistance will be given by,

$⟶{\mathrm{R}}_{(1,2)}={\mathrm{R}}_1+{\mathrm{R}}_2$

$⟶{\mathrm{R}}_{(1,2)}=(2+2)\mathrm{O}\mathrm{m}\mathrm{e}\mathrm{g}\mathrm{a}$

$⟶{\mathrm{R}}_{(1,2)}=4\mathrm{O}\mathrm{m}\mathrm{e}\mathrm{g}\mathrm{a}$

Now, the combined resistance of ${\mathrm{R}}_1$ and ${\mathrm{R}}_2$ is connected in parallel combination with ${\mathrm{R}}_3$, so their combined resistance will be given by,

$⟶{\displaystyle \frac{1}{{\mathrm{R}}_{(1,2,3)}}}={\displaystyle \frac{1}{{\mathrm{R}}_{(1,2)}}}+{\displaystyle \frac{1}{{\mathrm{R}}_3}}$

$⟶{\displaystyle \frac{1}{{\mathrm{R}}_{(1,2,3)}}}=({\displaystyle \frac{1}{4}}+{\displaystyle \frac{1}{2}})\mathrm{\Omega }$

$⟶{\displaystyle \frac{1}{{\mathrm{R}}_{(1,2,3)}}}=({\displaystyle \frac{1+2}{4}})\mathrm{\Omega }$

$⟶{\displaystyle \frac{1}{{\mathrm{R}}_{(1,2,3)}}}=({\displaystyle \frac{3}{4}})\mathrm{\Omega }$

Reciprocating both sides,

$⟶{\mathrm{R}}_{(1,2,3)}={\displaystyle \frac{4}{3}}\mathrm{\Omega }$

Now, the combined resistance of ${\mathrm{R}}_1$, ${\mathrm{R}}_2$ and ${\mathrm{R}}_3$ is connected in series combination with ${\mathrm{R}}_4$. So, equivalent resistance will be given by,

$⟶{\mathrm{R}}_{(1,2,3,4)}={\mathrm{R}}_{(1,2,3)}+{\mathrm{R}}_4$

$⟶{\mathrm{R}}_{(1,2,3,4)}=({\displaystyle \frac{4}{3}}+2)\mathrm{\Omega }$

$⟶{\mathrm{R}}_{(1,2,3,4)}=({\displaystyle \frac{4+6}{3}})\mathrm{\Omega }$

$⟶{\mathrm{R}}_{(1,2,3,4)}=({\displaystyle \frac{10}{3}})\mathrm{\Omega }$

$⟶{\mathbf{R}}_{\mathbf{(}\mathbf{1}\mathbf{,}\mathbf{2}\mathbf{,}\mathbf{3}\mathbf{,}\mathbf{4}\mathbf{)}}\mathbf{=}\mathbf{3.33}\mathbf{\Omega }$

Henceforth, Option A is correct.

$\underset{―}{\boxed{{\displaystyle \mathbf{O}\mathbf{p}\mathbf{t}\mathbf{i}\mathbf{o}\mathbf{n}\mathbf{B}\mathbf{!}\mathbf{!}}}}$

Here, we have to find the amount of flow of current in the circuit. By using ohm's law,

$⟶$ V = IR

$⟶$ 3 = I × 3.33

$⟶$ 3 ÷ 3.33 = I

$⟶$ 0.90 Ampere = I

Henceforth, Option B is correct.

$\text{purple}\mathtt{H}\mathtt{o}\mathtt{p}\mathtt{e}\mathtt{i}\mathtt{t}\mathtt{h}\mathtt{e}\mathtt{l}\mathtt{p}\mathtt{s}\mathtt{y}\mathtt{o}\mathtt{u}\mathtt{,}\mathtt{A}\mathtt{r}\mathtt{m}\mathtt{y}\mathtt{!}\mathrm{♡}$

The distance between the central bright fringe and the first bright fringe on the screen is approximately 8.52E-3 meters.

In Young's double-slit experiment, the distance between the central bright fringe (m = 0) and the first bright fringe (m = 1) can be calculated using the following formula:

y = (m * λ * L) / d

where:

y is the distance between the fringes on the screen,

m is the order of the fringe (0 for the central bright fringe, 1 for the first bright fringe),

λ is the wavelength of the light,

L is the distance from the slits to the screen, and

d is the distance between the slits.

Given the values:

λ = 4.57E-7 m (blue light wavelength)

d = 2.42E-4 m (distance between the slits)

L = 4.5 m (distance from the slits to the screen)

For the central bright fringe (m = 0), the distance (y) is:

y = (0 * 4.57E-7 m * 4.5 m) / 2.42E-4 m

y = 0

Therefore, the central bright fringe coincides with the point where the two beams of light overlap.

For the first bright fringe (m = 1), the distance (y) is:

y = (1 * 4.57E-7 m * 4.5 m) / 2.42E-4 m

y ≈ 8.52E-3 m

This calculation demonstrates how the interference pattern in Young's experiment is formed, with bright and dark fringes being produced based on the constructive and destructive interference of the light waves from the two slits. The distance between these fringes depends on the wavelength of light, the separation of the slits, and the distance between the slits and the screen.

For more such information on: distance

https://brainly.com/question/30395212

#SPJ8

Answer:

Magnetism is an example of a non-contact or action-at-a-distance force. These are forces which can act on an object without being in physical contact with it. The force of gravity is another example. Thus, gravity will pull a raindrop down to Earth without any tangible physical link between the Earth and the drop.

Explanation:

hope this helps u, sorry if it doesn't.

Answer:

Magnetic force

Explanation:

It would be this because all of th other forces are touching the object to make it move or somhting like that, the only one that makes it move by not touching it would be the magnetic force,

Hope this helps

The airplane will strike the ground at a horizontal distance of 490 meters.

To determine how far the airplane will strike on the ground, we need to consider the horizontal distance traveled by the airplane during its flight.

The horizontal distance traveled by an object can be calculated using the formula:

Distance = Speed × Time

In this case, the speed of the airplane is given as 100 meters per second and the time it takes to cover the distance of 490 meters is unknown. Let's denote the time as t.

Distance = 100 m/s × t

Now, to find the value of time, we can rearrange the equation as follows:

t = Distance / Speed

t = 490 m / 100 m/s

t = 4.9 seconds

Therefore, it takes the airplane 4.9 seconds to cover a horizontal distance of 490 meters.

Now, to calculate the distance on the ground where the airplane will strike, we can use the formula:

Distance = Speed × Time

Distance = 100 m/s × 4.9 s

Distance = 490 meters

It's important to note that this calculation assumes a constant speed and a straight flight path. In reality, various factors such as wind conditions, changes in speed, and maneuvering can affect the actual distance traveled by the airplane.

for more questions on horizontal distance

https://brainly.com/question/29147679

#SPJ8

"A Night at the Museum" is a story about a guard at the Museum of Natural History named Larry Daley who discovers that the museum exhibits come to life after hours due to a curse. Through Larry's experiences in the museum, the story illustrates a few specific progressions:First, the story highlights Larry's personal growth.

For such more question on emphasizes

https://brainly.com/question/28031416

#SPJ8

The magnitude of the resultant vector to round the answer to the nearest tenth, we look at the digit in the hundredth's place. If this digit is 5 or greater, we round up. If it is less than 5, we round down.

In the study of physics, we use vectors to represent quantities that have both direction and magnitude. It is often the case that we want to add two or more vectors together to obtain a single vector that represents the net result of these additions. The process of adding two or more vectors together is known as vector addition.The magnitude of the resultant vector is the length of the line that represents it on a scale drawing.

When we add two or more vectors together, the resultant vector is the vector that represents the net result of these additions. To find the magnitude of the resultant vector, we use the Pythagorean theorem, which states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.

In the case of vector addition, the hypotenuse is the resultant vector, and the other two sides are the component vectors. If we have two vectors a and b, the magnitude of the resultant vector is given by the following equation:|R| = √(ax2 + bx2)where R is the resultant vector, a and b are the component vectors, and x is the angle between the vectors.

For example, if the answer is 12.345, we would round it to 12.3.

for more questions on resultant vector

https://brainly.com/question/110151

#SPJ8

Answer:

-4530 J

Explanation:

Given that

Mass of the car, m = 100 kg

Speed of the car at point A, v1 = 25 m/s

Speed at point B, v2 = 8 m/s

Radius of the track, r = 12 m and with respect to the origin of the center of the track, we say that y1 = -12 at point A and y2 = 12 at point B

We also know that

W(total) = W(grav) + W(other) = K₂ - K₁

Work done by the gravitational force, W(grav) = -U(grav) = mgy1 - mgy2

Kinetic Energy, K = ½mv²

Adding all together, we have

½mv₁² + mgy1 + W(other) = ½mv₂² + mgy2

½ * 100 * 25² + 100 * 9.8 * -12 + W = ½ * 100 * 8² + 100 * 9.8 * 12

50 * 625 + 980 * -12 + W = 50 * 64 + 980 * 12

31250 - 11760 + W = 3200 + 11760

19490 + W = 14960

W = 14960 - 19490

W = -4530 J

Answer:

A 50 kg boulder suspended from a cliff.

Explanation:

In this case, that totally depends on the velocity of the object, In case of car, that's just parked so the velocity is zero and a fish can't swim with higher velocity than a boulder which is suspended from a cliff.

Hope it helps!<3

a) It is the error present in the measuring instrument that causes it to register a value even when there is no input or output being measured.

b) An example of when you would have to allow for zero error is when using a measuring instrument like a vernier caliper or micrometer screw gauge.

a) Zero error refers to the deviation or discrepancy in the measurement instrument, where the indication or reading on the instrument is not zero when the quantity being measured is zero. In other words, it is the error present in the measuring instrument that causes it to register a value even when there is no input or output being measured.

Zero error can occur due to various reasons such as manufacturing defects, wear and tear, misalignment, or improper calibration of the instrument. It can be positive or negative, depending on whether the instrument reads higher or lower than the actual value.

b) An example of when you would have to allow for zero error is when using a measuring instrument like a vernier caliper or micrometer screw gauge. These instruments are commonly used to measure the dimensions of objects with high precision.

In a vernier caliper, for instance, zero error can occur when the jaws do not close perfectly when there is no object being measured. If the caliper shows a reading other than zero when the jaws are closed, it indicates the presence of zero error.

To obtain accurate measurements, the zero error needs to be accounted for and compensated. This can be done by adjusting the position of the zero on the scale or by subtracting the zero error value from the measured readings.

For more such questions on measuring instrument visit:

https://brainly.com/question/30454346

#SPJ11

Answer:

g ±Δg = (9.8 ± 0.2) m / s²

Explanation:

For the calculation of the acceleration of gravity they indicate the equation of the simple pendulum to use

          T = $2\pi \sqrt{\frac{L}{g}}$

          T² =  $4{\pi }^2\frac{L}{g}$4pi2 L / g

          g = $4{\pi }^2\frac{L}{T^2}$

They indicate the average time of 20 measurements 1,823 s, each with an oscillation

let's calculate the magnitude

           g = $4{\pi }^2\frac{0.823}{{1.823}^2}$4 pi2 0.823 / 1.823 2

            g = 9.7766 m / s²

now let's look for the uncertainty of gravity, as it was obtained from an equation we can use the following error propagation

for the period

             T = t / n

             ΔT = $\frac{dT}{dt}$ Δt + $\frac{dT}{dn}$ ΔDn

In general, the number of oscillations is small, so we can assume that there are no errors, in this case the number of oscillations of n = 1, consequently

              ΔT = Δt / n

              ΔT = Δt

now let's look for the uncertainty of g

             Δg = $\frac{dg}{dL}$ ΔL + $\frac{dg}{dT}$  ΔT

             Δg = $4{\pi }^2\frac{1}{T2}$   ΔL + 4π²L  (-2  T⁻³) ΔT

a more manageable way is with the relative error

             $\frac{\mathrm{\Delta }g}{g}=\frac{\mathrm{\Delta }L}{L}+\frac{1}{2}\frac{\mathrm{\Delta }T}{T}$

we substitute

              Δg = g ( \frac{\Delta L }{L} + \frac{1}{2}  \frac{\Delta T}{T}DL / L + ½ Dt / T)

the error in time give us the stanndard deviation  

let's calculate

               Δg = 9.7766 ($\frac{0.001}{0.823}+\frac{1}{2}\frac{0.671}{1.823}$)

               Δg = 9.7766 (0.001215 + 0.0184)

               Δg = 0.19 m / s²

the absolute uncertainty must be true to a significant figure

                Δg = 0.2 m / s2

therefore the correct result is

               g ±Δg = (9.8 ± 0.2) m / s²

Answer:

  T = 5.66 s

Explanation:

The system formed by the bar plus ball forms a physical pendulum

        w = $\sqrt{mgd/I}$

the moment of inertia of a rod held at one end is

       I = $\frac{1}{3}$ m L²

we substitute

       w = $\sqrt{\frac{dd}{3L^2}}$

in this case the turning distance and the length of the rod are equal

        d = L

        w = $\sqrt{\frac{g}{3L}}$

angular velocity and period are related

       w = 2π / T

        2π / T = $\sqrt{\frac{g}{3L}}$

        T = 2π $\sqrt{3L/g}$

let's calculate

       T = 2π $\sqrt{32.65/9.8}$

       T = 5.66 s

using the second neutons law

600=mx1

=600kg

Answer:

A, the objects velocity

Explanation:

Explanation:

At 100m above sea level, the air pressure is approximately 990mbar, so the air pressure has decreased by approximately 10mbar.

There would be 10 atmospheric pressure at a depth of 100 meters of ocean water because approximately 10 meters depth of water is equivalent to 1 atmospheric pressure.

The total applied force per unit of area is known as the pressure.

The pressure depends both on externally applied force as well the area on which it is applied.

As given in the problem we have to find out the atmospheric pressure equivalent at a depth of 100 meters of ocean water,

10 meters depth of water = 1 atmospheric pressure

100-meter depth of the ocean water = 10 atmospheric pressure

Thus, there would be 10 atmospheric pressure at a depth of 100 meters of ocean water.

To learn more about pressure, refer to the link given below ;

brainly.com/question/28012687

#SPJ2

Answer:

All other SI units are derived by multiplying, dividing or powering the base units in various combinations, For example: mechanical work is force applied multiplied by distance moved and has the unit newton metre written as Nm.

Explanation:

please mark me as the brainliest

Answer:

Explanation:

When discussing Newton's laws of motion, the most likely used terms when talking about Newton's third law of motion are action and reaction. According to this law, for every action there is an equal and opposite reaction

Answer: C. "action" and "reaction"

Explanation: Newtons 3rd law of motion: for every action, there is an equal and opposite reaction (action and reaction forces are described by this law).

Have a nice day. :)

The engineer must design an engine that can produce a force of over 3,100 Newtons.

A force is an energy that can cause change of motion. It can be a push or a pull. It also has both magnitude and direction, making it a vector quantity.

From the question;

total mass = mass of person + mass of cart

total mass = 80kg + 75kg

total mass = 155kg

acceleration = 20m/s²

The formula to be used;

F = m x a

F = 155kg x 20m/s²

F = 3,100N

In conclusion, the engineer needs a minimum force of 3,100 N in the engine to be able to power the cart.

Learn more about forces: https://brainly.com/question/12970081

#SPJ1