Alejandro camina 250 metros en linea recta durante 5 minutos y regresa a su mismo camino a su punto de partida en 7 minutos. ¿cual es la distancia total recorrida? ¿cual es la velocidad en m/s? ¿cuanto vale su desplazamiento total?

Answers

Answer 1

Alejandro walks 250 meters in a straight line for 5 minutes and returns to his same path to his starting point in 7 minutes.
Going to the point, he walked 50 meters every minute and going back, he walked 35.71428571428571

Related Questions

Which material is a conductor?
A. chalk
B. lead
C. leather
D. paper
E. rubber

Answers

B. Lead is a conductor....

The distance from the center of the lens to its principal focus is called the focal length.
O A. True
O B. False​

Answers

Answer:

true

Explanation:

Answer:

Explanation:

A. True

which subatomic particle is transferred through circuits

Answers

Answer:A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge. An atom usually contains an equal number of positively charged protons and negatively charged electrons.

Explanation:

???????????!??!!!!!!!!​

Answers

The answer would be B.

If 30.45 grams of water is to be heated up 3.3 degrees to make baby
formula, how much heat must be added? The specific heat of water is
4.18 J/g °C.

A. 420 J
B. 281 J
C. 1604 J
D. 410 J

Answers

Answer:

A. 420 J

Explanation:

Given the following data;

Mass = 30.45 g

Specific heat capacity = 4.18 J/g °C.

Temperature = 3.3°C

To find the quantity of heat;

Heat capacity is given by the formula;

[tex] Q = mct [/tex]

Where;

Q represents the heat capacity or quantity of heat.

m represents the mass of an object.

c represents the specific heat capacity of water.

t represents the temperature.

Substituting into the equation, we have;

[tex] Q = 30.45 * 4.18 * 3.3 [/tex]

Q = 420.03 ≈ 420 Joules

Un móvil posee un movimiento uniformemente acelerado, con una velocidad inicial de 20 m/s y aceleración 1,5 m/s. ¿Qué velocidad tendrá cuando hayan transcurrido 2 minutos? ¿Qué espacio habrá recorrido durante ese tiempo?

Answers

Answer:

La velocidad que tendrá el móvil cuando hayan transcurrido 2 minutos es 200 m/s.

El espacio que habrá recorrido el móvil durante 2 minutos es 13200 metros.

Explanation:

El movimiento rectilíneo uniformemente variado o MRUV es un movimiento que ocurre sobre una línea recta con aceleración constante. En otras palabras, un cuerpo realiza un  movimiento rectilíneo uniformemente variado cuando su trayectoria es una línea recta y su aceleración es constante y distinta de 0. Esto implica que la velocidad aumenta o disminuye su módulo de manera uniforme.

La velocidad que tendrá un móvil luego de un tiempo t será:

v= v0 + a*t

donde v0 es la velocidad inicial y a es la aceleración.

En este caso v0= 20 m/s, a=1,5 m/s² y t=2 minutos= 120 segundos. Reemplazando y resolviendo se obtiene:

v= 20 m/s + 1.5 m/s²* 120 segundos

v= 200 m/s

La velocidad que tendrá el móvil cuando hayan transcurrido 2 minutos es 200 m/s.

La expresión de la  posición en función del tiempo para el movimiento uniformemente variado es:

x= x0 + v0*t + [tex]\frac{1}{2}[/tex] *a*t²

donde x0 es la posición inicial, v0 es la velocidad inicial y a es la aceleración.

En este caso x0= 0 m, v0= 20 m/s, a=1,5 m/s² y t=2 minutos= 120 segundos. Reemplazando y resolviendo se obtiene:

x= 20 m/s* 120 s +  [tex]\frac{1}{2}[/tex] * 1.5 m/s² *(120 s)²

x= 2400 m + 10800 m

x= 13200 m

El espacio que habrá recorrido el móvil durante 2 minutos es 13200 metros.

In the diagram, R1 = 40.0 ohm, R2 = 25.4 ohm, and R3 = 70.8 ohm. What is the equivalent resistance of the group?​

Answers

Given :

[tex]R_1 = 40 ohms[/tex]

[tex]R_2 = 25.4 ohms[/tex]

[tex]R_3 = 70.8 ohms[/tex]

Solution :

The resistors [tex]R_1 and R_2 [/tex]are in series connection, so the equivalent resistance of [tex]R_1 and R_2[/tex] will be their sum.

[tex] \boxed{ \mathrm{R_t = R_1 + R_2}}[/tex]

[tex]R_t= 40 + 25.4[/tex]

[tex]R_t= 65.4 \: \: ohms[/tex]

Now, the equivalent resistance of [tex](R_1 and R_2)[/tex] and [tex]R_3 [/tex] is the total resistance of the circuit, and since they are in parallel connection, Total resistance :

[tex] \mathrm{ \dfrac{1}{ R_{eq}}} = \dfrac{1}{65.4} + \dfrac{1}{70.8} [/tex]

[tex] \dfrac{1}{R_{eq}} = \dfrac{65.4 + 70.8}{4630.32} [/tex]

[tex] \frac{1}{R_{eq}} = \dfrac{136.2}{4630.32} [/tex]

[tex]R_{eq} = \dfrac{4630.32}{136.2} [/tex]

[tex]R_{eq} = 33.996 \: \: ohms[/tex]

[tex] \boxed{ \mathrm{R_{eq} = 34 \: ohms}} \: (approx)[/tex]

_____________________________

[tex]\mathrm{ \#TeeNForeveR}[/tex]

A man is driving his 1100 kg car at 36 km/h on a straight freeway. After accelerating for 30 seconds, the car
has a speed of 108 km/h. How much work did the engine do during the 30 seconds?

Answers

Answer:

W = 439998 J = 439.99 KJ

Explanation:

First, we will calculate the acceleration of the car by using the first equation of motion:

[tex]v_f = v_i + at\\\\a = \frac{v_f-v_i}{t}[/tex]

where,

a = acceleration = ?

vf = final speed = [tex]108(\frac{km}{h})(\frac{1000\ m}{1\ km})(\frac{1\ h}{3600\ s})[/tex] = 30 m/s

vi = initial speed = [tex]36(\frac{km}{h})(\frac{1000\ m}{1\ km})(\frac{1\ h}{3600\ s})[/tex] = 10 m/s

t = time = 30 s

Therefore,

[tex]a = \frac{30\ m/s - 10\ m/s}{30\ s}[/tex]

a = 0.67 m/s²

Now, we will calculate the force applied by the engine:

F = ma

where,

F = force = ?

m = mass = 1100 kg

Therefore,

F = (1100 kg)(0.67 m/s²)

F = 733.3 N

Now, we will calculate the distance covered by the car by using the second equation of motion:

[tex]s = v_it+\frac{1}{2}at^2\\\\s = (10\ m/s)(30\ s)+\frac{1}{2} (0.67\ m/s^2)(30\ s)^2[/tex]

s = 600 m

Now, the work done (W) by engine can be calculated as follows:

W = Fs

W = (733.3 N)(600 m)

W = 439998 J = 439.99 KJ

A coconut at rest suddenly explodes into two pieces. no net external force is applied to it.One piece with mass 2m lands a distance d to the right of the starting point. The second piece has mass m. We can ignore air resistance. where dow stew swcond piece land?

Answers

Answer:

To the Left

Explanation:

A planet orbits a sun in a clockwise elliptical orbit as shown in the diagram below
Bubble in the letter representing the position or choose e if it is constant

At which position does the planet have the greatest gravitational energy?

Answers

Answer:

Greatest gravitational energy is at "C".

The planet has to do work "against" the field to get to "C".

Also, if m v R (angular momentum) is constant then as R increases v must decrease for this term to be constant and KE = 1/2 M v^2  must decrease also to get to point C.

How many valence electrons does the hydrogen and oxygen have in the following picture?

Answers

Answer:

can u make the picture less blurry pls

Explanation:

The gravitational force is 2336 N for an object that is 4.15 x 10^6 m above the surface of the Earth? The radius of the Earth is 6.378 x 10^6 m. (Earth's mass is 5.97 x 10^24 kg) What is the mass of the object above earth?

Answers

Answer:

34kg

Explanation:

What type of lens is used in the objective lens (front lens) of binoculars and why?
(Concave or convex)

Answers

Answer:

If you want to see something in the distance, you can use two convex lenses, placed one in front of the other. The first lens catches light rays from the distant object and makes a focused image a short distance behind the lens. This lens is called the objective, because it's nearest to the object you're looking at.

Explain why all living have genes and DNA but not all living things look the same. (Discuss, paragraph answers)

Answers

Answer:

All living organisms store genetic information using the same molecules DNA and RNA. Genes are maintained over an organism's evolution, however, genes can also be exchanged or "stolen" from other organisms.

why are antennas needed for radio, television, and cell phone transmission>

A. without a long antenna, the signal will not travel very far
B. the antenna allows you to direct your signal toward the intended target
C. the sound waves require a metal surface to bounce off
D. EM waves are created by oscillating electrons within the antenna
40 points + brainliest if correct please help

Answers

Answer:

A.without a long antenna, 're signal will not travel far

Other Questions
What is energy transformation Read and choose the correct option to complete the sentence.Your parents rented ________ for family vacations this year. (2 points) toa key ba country house can elevator da room service Write an argument List of points for andagainst the topicVillage people are moreprivileged than the urban people Please help. What is the answer? All of the following are used to reduce traffic congestion in many world metropolitan cities EXCEPTLondon residents paying a congestion charge to drive downtown during the daytime.Toronto drivers paying tolls to drive on freeways during congested times.Singapore residents needing a permit to drive downtown during the busiest times of day.Copenhagen drivers being banned from driving in portions of central areas downtown.Los Angeles drivers being prohibited from using major freeways during high congestion times. SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER TO COMPLETE THIS! NO LINKS OR YOU WILL BE REPORTED, I WILL GIVE BRAINLIEST!!!!! I NEED THE ANSWER TODAY THIS ASSIGNMENT IS DUE TODAY (HElP) which answers describe the shape below? Why Uranium consider as non-renewable resource? Please I need it now and short answer with simple meaning!! All of the following were introduced to theNew World as a result of The ColumbianExchange, with the exception of which?A. diseasesB. slave tradeC. paper moneyD. foods How do you properly quote a website? My teacher's example was: "You may say something like this: Chopin writes, "QUOTE." This shows us that...." What if the author isn't referenced? figurative language is phrasing that goes beyond the literal meaning of words to get a message or point across. Determine the figures or speech used in the following expressions. a) Toivo is the cancer of my dreams and aspirations b) Gadgets isolate. us from tge rest of the family members c) pamue has been teaching here since stone age d) love is blind . it dragged her into that mess Why do you think that the Union wanted to take control of Richmond, Virginia? Possesses help me get this right a heater is turned on in a cold room the scatterplot shows the relationship between the length of time since the heater was on in the temperature of the room the y-intercept of the estimated line of best fit is at (0, b). enter the approximate slope of the estimated line of best fit in the second response box How do I find the indicated value for this problem? The point-slope equation of a line isA. y + x - Xoyo = mB. y= m(x - Yo)O C. y+ mx - mxoyoD. y-yo = m(x- xo) Solve the factorial.The factorial \(4!\) is equal to The following question refers to the text Gus and Frieda: Geniuses at Recess. Read the paragraph and answer the question below it. The paragraphs have been labeled A, B, and C. The sentences in each paragraph have been numbered to help you identify them more easily. Gus and Frieda: Geniuses at Recess (A)/>!" Gus and Frieda were not enjoying recess. (2) They considered themselves athletically challenged. B) To make things worse, the young geniuses' teacher asked them to play dodge ball. (B)/>() Panic showed on Gus's face. (2) Frieda was worried, too. (3) They both feared they would fail epicly. (Cy>(1) Gus and Frieda studyed the situation then got an idea. (2) when no one was looking, they replaced themselves with identical robots. The plan worked terrifically, and they dodged disaster for the day. What statement is true about paragraph A? (5 points) There is an error sentence number 1. There is an error in sentence number 2. There is an error in sentence number B. There are no errors in paragraph A. No links! please just say the answer herePlease help I have a C rn!! What is the angle and the answer pls this is a quiz grade [tex]500 \times 96515 + 275[/tex]