1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
steposvetlana [31]
3 years ago
9

The atoms have changed over time. Scientists think this is wrong. Why?

Physics
1 answer:
olga55 [171]3 years ago
6 0

Answer:

The mitochondria is the powerhouse of the cell, that's why.

You might be interested in
In the data table , distance is measured in meters and time is in seconds. Calculate the mans average velocity using the equatio
Artist 52 [7]

Answer:

3.626 m/s

Explanation:

v=d/t

1. -0.02/0 = 0 m/s

2. 0.86/0.2 = 4.3 m/s

3. 1.71/0.4 = 4.275 m/s

4. 2.54/0.6 = 4.23 m/s

5. 3.32/0.8 = 4.15 m/s

6. 4.08/1.0 = 4.08 m/s

7. 4.79/1.2 = 3.99 m/s

8. 5.48/1.4 = 3.91 m/s

9. 6.15/1.6 = 3.84 m/s

10. 6.76/1.8 = 3.76 m/s

11. 7.37/2.0 = 3.66 m/s

12. 7.92/2.2 = 3.6 m/s

13. 8.45/2.4 = 3.52 m/s

14. 8.96/2.6 = 3.45 m/s

the mean of these numbers is 3.626

his average velocity ks 3.626 m/s

6 0
3 years ago
Help asapppppppppppppppppp
Lana71 [14]
Answer:

I’m pretty sure the answer is distance

Explanation:

Hope this helps! Sorry if it’s wrong.
5 0
3 years ago
La tension que se transmite en la cuerda BD es de 75 lb. Calcula el momento de fuerza generada por la cuerda respecto al punto C
Bas_tet [7]

Answer:

Mc = 1920[lb*in]

Explanation:

Para poder solucionar este problema debemos realizar un análisis estático, por tal motivo lo primero es realizar un diagrama de cuerpo libre con las respectivas fuerzas actuando sobre la barra ABC. DE igual manera calcular la geometría de la configuración mostrada.

El diagrama de cuerpo libre se puede ver en la imagen adjunta, con la solución de este problema.

Lo primero es determinar el angulo t, el cual por medio de las propiedades del triangulo rectángulo se puede determinar.

Con este angulo (t) ya determinado, fijamos la atención en el triangulo BCD, este triangulo no es rectángulo, pero por medio de la ley de senos podemos determinar el angulo omega.

Después de determinar el angulo omega, restamos el angulo (t) para poder determinar el angulo (a).

Seguidamente realizamos una sumatoria de momentos alrededor del punto C, utilizado las respectivas fuerzas con los ángulos descompuestos.

El momento en el punto C es de 1920 [Lb*in].

Nota: ya que no se menciona la fuerza en el punto A, esta se desprecia y no se tiene en cuenta en los calculos. En la imagen adjunta se puede ver el procedimiento desarrollado.

7 0
3 years ago
How many seconds would it take a radio wave to travel from the planet Venus to
xz_007 [3.2K]

Answer:

La distancia media de Venus al Sol es de 108.159.260,51 Km

La distancia media de la Tierra al Sol: 149.597.870,691 Km

La diferencia entre una y otra distancia media te dará el promedio de distancia de la Tierra a Venus: 41.438.618,181 Km.

Siendo la velocidad de la luz: 299.792,458 Km / seg

Divides: 41.438.618,181 Km / 299.792,458 Km / seg = 138,22433 segundos

138,22433 seg / 60 seg = 2,30374 minutos

Este tiempo es el que tarda la onda de radio en viajar del planeta Venus a la Tierra.

La velocidad de la onda de radio se conviene en considerarla igual al de la velocidad de la Luz en el vacío.

Explanation:

<<

4 0
3 years ago
A helicopter is hovering above the ground. Jim reaches out of the copter (with a safety harness on) at 180 m above the ground. A
vesna_86 [32]

Answer:

The maximum height of the package is 140 m above the ground. Jim Bond will not catch the package.

Explanation:

Hi there!

The equation of height and velocity of the package are the following:

h = h0 + v0 · t + 1/2 · g · t²

v = v0 + g · t

Where:

h = height of the package at time t.

h0 = initial height.

v0 = initial velocity.

t = time.

g = acceleration due to gravity (-9.81 m/s² because we consider the upward direction as positive).

v = velocity of the package at a time t.

First, let´s find the time it takes the package to reach the maximum height. For this, we will use the equation of velocity because we know that at the maximum height, the velocity of the package is zero. So, we have to find the time at which v = 0:

v = v0 + g · t

0 = 50.5 m/s - 9.8 m/s² · t

Solving for t:

-50.5 m/s / -9.81 m/s² = t

t = 5.15 s

Now, let´s find the height that the package reaches in that time using the equation of height. Let´s place the origin of the frame of reference on the ground so that the initial position of the package is 10 m above the ground:

h = h0 + v0 · t + 1/2 · g · t²

h = 10 m + 50.5 m/s · 5.15 s - 1/2 · 9.81 m/s² · (5.15 s)²

h = 140 m

The maximum height of the package is 140 m above the ground. Jim Bond will not catch the package.

6 0
3 years ago
Other questions:
  • Astronomers think most galaxy interactions took place at redshifts of greater than 1 because
    14·1 answer
  • The resting heart rate will increase quickly in a person who has a high level of cardiovascular fitness. True or false
    13·2 answers
  • An alpha particle is identical to a _____.
    9·2 answers
  • Work occurs when
    14·2 answers
  • A student looks at ocean waves coming into the beach. An ocean wave with more energy will A) have a greater height. B) have a gr
    10·2 answers
  • A moving hammer hits a nail and drives it into a wall. if the hammer hits the nail with twice the speed, how much deeper will th
    14·1 answer
  • Explain how you should walk
    15·2 answers
  • A 0.500-kg block slides up a plane inclined at a 30° angle. If it slides 1.50 m before coming to rest while encountering a frict
    15·1 answer
  • Ssooeorkgogogoogkrorooror
    6·1 answer
  • Need help please and​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!