Please helpers! I wrote the first questions answer but from there i didnt know how to calculate.

Responder:

A. Ff = 300 N N = 784,8 N

Explicación:

Dado

Masa del cuerpo = 80 kg

Fuerza de movimiento Fm = 300N

Dado que el cuerpo no está acelerando, la fuerza de fricción (Ff) es igual a la fuerza de movimiento que actúa sobre el cuerpo, ya que la fuerza de fricción es una fuerza de oposición, es decir, Fm = Ff

Dado que Fm = 300N, Ff = 300N

La reacción normal que actúa en el cuerpo es igual al peso.

N = W = mg

g es la aceleración debida a la gravedad

g = 9,8 m / s

N = mg

N = 80 (9,81)

N = 784,8N

Por tanto, la fuerza normal que actúa sobre el cuerpo es 784,8 N

Answer:

Explanation:

Centripetal force is expressed as;

F = mv²/r

m is the mass = 700/10 = 70kg

v = 8.8m/s

r = 25m

Required

Centripetal force

Substitute the given parameters into the formula;

F = 70*8.8²/25

F = 70 * 77.44/25

F = 5420.8/25

F = 216.832N

Hence the centripetal force of the runner is 216.832N

Answer:

1 km = 1000 m

1 m = 100 cm

1 m = 1000 mm

1 cm = 10 mm

hope this helps u figure it out :)

D is the correct answer!

Answer;   D is the answer

Explanation:

Answer:

[tex] \huge{ \boxed{ \bold{ \sf{77 \: m/s}}}}[/tex]

☯ Question :

☯ [tex] \underbrace{ \sf{Required \: Answer : }}[/tex]

☥ Given :

☥ To find :

☄ We know ,

[tex] \boxed{ \sf{v = f \times λ}}[/tex]

where ,

Now, substitute the values and solve for v.

➺ [tex] \sf{v = 11 \times 7}[/tex]

➺ [tex] \boxed{ \sf{v = 77 \: m/s}}[/tex]

-------------------------------------------------------------------

✑ Additional Info :

Hope I helped!

Have a wonderful time! ツ

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Answer:

B.  0.50 meters/second^2

Explanation:

Given:

Arranging Formulas and Substituting Values, Part 1:

Arranging Formulas and Substituting Values, Part 2:

Answer:

B.  0.50 meters/second^2

Explanation:

Answer:

10m/s

Explanation:

Answer: 10

Explanation: Because, 10*10= 100 or 100/10=10

Answer: Action and reaction forces are applied to different objects

Explanation:

Answer:

action and reaction forces are applied to different objects

Explanation:

Answer:

Look below :) Hope this helped. Please provide Brainliest, as reporters took all I had away. Thanks!

Explanation:

Kepler's family was Lutheran and he adhered to the Augsburg Confession a defining document for Lutheranism. However, he did not adhere to the Lutheran position on the real presence and refused to sign the Formula of Concord. Because of his refusal he was excluded from the sacrament in the Lutheran church. This and his refusal to convert to Catholicism left him alienated by both the Lutherans and the Catholics. Thus he had no refuge during the Thirty-Years War.

The Holy Roman Empire of German Nationality at the Time of Kepler

The Holy Roman Empire of German Nationality at the Time of Kepler.

In 1612 Lutherans were forced out of Prague, so Kepler moved on to Linz. His wife and two sons had recently died. He remarried happily, but had many personal and financial troubles. Two infant daughters died and Kepler had to return to Württemburg where he successfully defended his mother against charges of witchcraft. In 1619 he published Harmonices Mundi, in which he describes his "third law."

In spite of more forced relocations, Kepler published the Epitome Astronomiae in 1621. This was his most influential work and discussed all of heliocentric astronomy in a systematic way. He then went on to produce the Rudolphine Tables that Tycho had envisioned long ago. These included calculations using logarithms, which he developed, and provided perpetual tables for calculating planetary positions for any past or future date. Kepler used the tables to predict a pair of transits by Mercury and Venus of the Sun, although he did not live to witness the events.  

Johannes Kepler died in Regensburg in 1630, while on a journey from his home in Sagan to collect a debt. His grave was demolished within two years because of the Thirty Years War. Frail of body, but robust in mind and spirit, Kepler was scrupulously honest to the data.

Short Biography -|- Kepler's Firsts -|- Kepler's Laws -|- People and Events in Kepler's Time -|- Articles

Biographies and books -|- Web Sites -|- IYA Kepler

A List of Kepler's Firsts

First to correctly explain planetary motion, thereby, becoming founder of celestial mechanics and the first "natural laws" in the modern sense; being universal, verifiable, precise.

In his book Astronomia Pars Optica, for which he earned the title of founder of modern optics he was the:

First to investigate the formation of pictures with a pin hole camera;

First to explain the process of vision by refraction within the eye;

First to formulate eyeglass designing for nearsightedness and farsightedness;

First to explain the use of both eyes for depth perception.

Answer:

It's definitely Nucleus

Hope this Helps!

Answer:

The correct option is;

D) The force exerted on the astronaut by Earth is equal to the force exerted on Earth by the astronaut

Explanation:

According to Newton's third law of motion, in nature, for every action, there is an equal and opposite reaction, such that if a first object exerts a certain amount of force on a second object, the second object will exert a force of equal magnitude and opposite direction to that exerted by the first object

Therefore, the gravitational force exerted by Earth on the astronaut, is equal to the force exerted by the astronaut on Earth.

The claim from the options that is true about the force exerted on the astronaut by Earth is;

Option D; The force exerted on the astronaut by Earth is equal to the force exerted on Earth by the astronaut.

Force(F) = Mass * Acceleration

Thus, the same force exerted on the astronaut by the earth is same exerted on the earth by the astronaut.

Read more about force of gravity at; https://brainly.com/question/11569146

Answer:

Displacement is 9m

Distance traveled is 9m

Answer:

Vf = Vi + a t       fundamental equation

-60 m/s= Vi - 9.8 m/s^2 * 6 sec      taking upward direction as positive

Vi =58.8 m/s - 60  m/s = -1.2 m/s   so the coin was initially thrown downward

As a check take the downward direction as positive

Vf = 1.2 m/s + 58.8 m/s = 60 m/s  

Answer:

600 km

6 hours

Explanation:

El tiempo que viaja el automóvil de 6 a 10 de la mañana es [tex]10-6=4\ \text{horas}[/tex]

La velocidad del coche es 150 km/hr

La distancia está dada por

[tex]\text{Distancia}=\text{Velocidad}\times \text{Tiempo}[/tex]

[tex]150\times 4=600\ \text{km}[/tex]

A distancia recorrida a las 10 de la mañana es de 600 km.

Ahora el tiempo que se toma está dado por

[tex]\text{Tiempo}=\dfrac{\text{Distancia}}{\text{Velocidad}}[/tex]

[tex]\dfrac{900}{150}=6\ \text{horas}[/tex]

El tiempo que se tarda en recorrer 900 km es de 6 horas.

Answer:

A

Explanation:

An ion with a negative charge

Answer:A

Explanation:

Answer:

(D) Vf² = Vi² + 2ad

a = 2.269 m/s²

Explanation:

Given;

final velocity of the aircraft, Vf = 33 m/s

initial velocity of the aircraft, Vi = 0

distance traveled by the plane, d = 240 m

The acceleration of the plane is given by the following kinematic equation;

Vf² = Vi² + 2ad

where;

a is the acceleration;

Based on the given options, the correct option is "D".

Calculating the acceleration with the chosen equation;

Vf² = Vi² + 2ad

Vf² = 0+ 2ad

Vf² =  2ad

a = Vf² / 2d

a = (33)² / (2 x 240)

a = 2.269 m/s²

Answer:

Fa = 5000 [N]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

Let's assume that the movement of the plane is to the right, any movement or force to the right will be marked with a positive sign, while any force or movement to the left, will be taken as negative.

The force of the turbine drives the plane to the right, therefore it is positive, the acceleration is constant and keeps the movement to the right, therefore it is positive, the wind drag force tries to prevent the movement of the plane to the left therefore it is negative, with this analysis we deduce the following equation.

ΣF = m*a

where:

ΣF = sum of forces [N] (units of Newtons)

m = mass = 65000 [kg]

a = acceleration = 3 [m/s²]

Fa = force exerted by the air [N]

200000 - Fa = 65000*3

Fa = 200000 - (3*65000)

Fa = 5000 [N]

Answer:

he can use the laser to point to specific information on the slides.

he can use the laser to point to specific information on the slides.Explanation:

He can use the laser to point to specific information on the slides might a laser best help him with the presentation. Hence, option B is correct.

When something is referenced in the text, "specific information" refers to an explicit, precise fact or description of that item. Generally speaking, general information is nebulous and serves as a wide description of something.

A particular instance is a particular example. In order to present a specific example of technology, one could write about specific individuals using a specific machine. You would need to write about specific individuals in order to provide a concrete example of any human activity.

There are various specific issues that need to be resolved. To address particular challenges, specific groups may be formed. I prompted him to provide further details. She is from the United States, namely Boston.

Thus, option B is correct.

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Answer:

A)     E = 145.6 N / C , B)  y= 2,8 10-7 m with a downward direction

C) he shape of the trajectory of the two particles is to simulate a parabola,

D)     F_{e} /F_{g} = 10³⁴

Explanation:

A) For this exercise we use Newton's second law to find the acceleration of the electron, where the force is electric

           F = m a  

           - e E = m a

          a = - e E / m

with the field directed downward, the acceleration is in the vertical upward direction.

We look for how much the electron moves with kinematics, in the x direction there is no acceleration,

x axis (parallel to plates)

           x = v₀ t

           t = x / v₀

y axis (perpendicular to plates)

          y = y₀ + [tex]v_{oy}[/tex] t + ½ a t²

Let's take the zero of the system in the middle of the plates y₀ = 0, also the initial vertical velocity is zero (v_{oy} = 0) the width of the plate is known

          y = ½ a t²

we substitute

         y = ½ (e E /m)  (x / v₀)²

         y = ½ e x2 /m v₀²   E

we look for the electric field

        E = 2 m y v₀² / e x²

where to use this expression the length and width of the condenser must be known, suppose that the length is x = l = 1 cm = 1 10⁻² m and the width is y = 0.5 mm = 0.5 10⁻³ m

let's calculate

         E = 2  9.1 10⁻³¹ 0.5 10⁻³ (1.6 10⁶)² / (1.6 10⁻¹⁹ (1 10⁻²)²)

         E = 145.6 N / C

B) The electron is exchanged for a proton

Let's look for the vertical displacement, in this case as the proton has a positive charge it moves towards the bottom of the plates

          y = ½ e x² / m v₀² E

          y = ½ 1.6 10⁻¹⁹ 1 10⁻⁴ / (1.67 10⁻²⁷ (1.6 10⁶)²   145.6

          y = 28.4375 10⁻⁸ m

since the distance between the plates is 0.5 10-3 m, the proton passes the condensate because its deflection is very small

In summary, its displacement is y= 2,8 10-7 m and with a downward direction (the same direction of the electric field)

C) The shape of the trajectory of the two particles is to simulate a parabola, but one for having a negative charge (electron) the force is upwards and the other for having a positive charge (proton) the trajectory is downwards

D) The force of gravity

           [tex]F_{g}[/tex] = G m M / R²

electron

          Between the electron and the positive charges of the conducting plate

           F_{g}= 6.67 10⁻¹¹ 1.67 10⁻²⁷ 9.1 10⁻³¹ / (0.5 10⁻³)²

           F_{g} = 4.1 10⁻⁵¹ N

electric force

           F_{e} = -e E

           F_{e} = - 1.6 10⁻¹⁹ 145.6

           F_{e} = 2.3 10⁻¹⁷ N

let's look for the reason between these two forces

         F_{e} / F_{g} = 2.3 10⁻¹⁷ / 4.1 10⁻⁵¹

          F_{e} /F_{g} = 10³⁴

We see that the electric force is many orders of magnitude higher than the gravitational force.

Answer:

C

Explanation:

Answer:

C

Region B, the corpus callosum, is composed of several lobes while region D, the cerebellum, only has one lobe.

Explanation:

Answer:

anything inflated, a can, and a pencil.

Explanation:

these objects can flaot on water because theyre mass is not enough for the objects to sink.

Answer

divide by 9.8 or 10

Explanation:

normal force equals to the weight, which is equal to mass* gravitational force

Answer: 1.42 N

Explanation:

Just took

Answer:

the temperature measured by the thermometer is 25 ° X

Explanation:

The computation of the temperature measured by the thermometer is shown below:

Here is the thermometric scale list

(X - 0) ÷  C - 0 = (50 - 0) ÷ (100 - 0)  

X ÷ C = 50 ÷100  

X = C ÷ 2  

Now if there is 50 degrees celcius

So, the x would be

= 50 ÷ 2

= 25 ° X

Hence, the temperature measured by the thermometer is 25 ° X

The same is to be considere d

Answer:

true stick up for urself

Answer:

Explanation:

The car will fall with acceleration due to gravity which is equal to 9.8 m /s²

For downward fall ,

initial velocity u = o

acceleration due to gravity = g = 9.8 m /s

final velocity v = ?

displacement h = 5.2 m

v² = u² + 2 gh

v² = 0 + 2 x 9.8 x 5.2

= 101.92

v = 10.1 m /s

Answer:

131.25

Explanation:

i worked it out on a diffrent sheet so its hard to explain

Answer:131 is the right answer

Explanation:

Answer:

d

Explanation:

I did the test and got it right.

Based on the table, the statement that is true about the solubility of two substances in 100 milliliters is the solubility of hydrochloric acid increases as temperature increases. The correct option is d.

Solubility is a condition when the solute is fully mixed with the solvent and there is no difference between the molecules of solvent and the solutes.  The solubility of a substance is based on its molecules. If they are polar, then they can dissolve in numerous solvents.

The salt molecules are fully soluble in the water. The molecules which get dissolved are called the solute and the molecules that dissolve something within them, are called solvents.

Thus, the correct option is d, The solubility of hydrochloric acid increases as temperature increases.

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Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 1100 × 2

We have the final answer as

Hope this helps you