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
den301095 [7]
2 years ago
7

If chilled coke and hot tea are kept together tea cools down but coke gets warm .why?​

Physics
1 answer:
Harlamova29_29 [7]2 years ago
6 0

When hot tea is mixed to chilled coke, tea loses heat and coke gains heat. Thus, tea cools down but coke gets heated. Because it is liquid and liquid does not totally cool down to the ambient temperature, it and the iced drink will eventually reach the same temperature.

You might be interested in
When an electric current is passed through water during the process of electrolysis, two gases are formed. One gas has a boiling
konstantin123 [22]
The chemical change occurred. Electrolysis is used by scientists to make chemical reactions that wouldnt normaly spontaniously ocur. In this case we are getting new gases from water molecul which is change in structure of elements ( we are getting new moleculs)
7 0
3 years ago
The Escape speed at the surface of a certain planet is twice that of the earth. what is its mass in unit of earth's mass?
VLD [36.1K]

Answer:

22Km/sec

Explanation:

6 0
2 years ago
A basic statement established by experiment or observation.
Tems11 [23]

Answer:

c.Law

Explanation:

i think you must learn and write however good luck

4 0
3 years ago
Read 2 more answers
Una cuerda de 20 pies se estira entre dos arboles. Un peso W cuelga del centro de la cuerda hace que el punto medio de la misma
Galina-37 [17]

Answer:

La magnitud de la masa del peso es 78.447 libras-masa.

Explanation:

La tensión es una fuerza de reacción de la cuerda causada por la acción de una fuerza externa. En este caso, esa fuerza externa es el peso que cuelga en el centro de la cuerda. Abajo hemos adjuntado una representación simplificada del enunciado.

Por las leyes de Newton, tenemos la siguiente ecuación de equilibrio conformada por tres fuerzas:

\vec T_{1} + \vec T_{2} + \vec W = (0, 0)\, [N] (1)

Donde:

\vec T_{1}, \vec T_{2} - Tensiones a cada lado de la cuerda, en newtons.

\vec W- Peso, en newtons.

Si sabemos que \vec T_{1} = T\cdot (\cos \alpha, \sin \alpha), \vec T_{2} = T\cdot (-\cos \alpha, \sin \alpha) y \vec W = W\cdot (0, -1), entonces tenemos la siguiente ecuación vectorial:

T\cdot (\cos \alpha, \sin \alpha) + T\cdot (-\cos\alpha, \sin \alpha) + W\cdot (0, -1) = (0,0)

T\cdot (0, 2\cdot \sin \alpha) = W\cdot (0, 1)

Esto permite reducir la anterior expresión a una fórmula escalar:

2\cdot T\cdot \sin \alpha = W

Donde \alpha es el ángulo de inclinación de la cuerda, medido en grados sexagesimales.

El ángulo de inclinación de la cuerda se determina mediante la siguiente fórmula trigonométrica inversa es:

\alpha = \tan^{-1} \left(\frac{2\,ft}{10\,ft}\right)

\alpha \approx 11.310^{\circ}

Si conocemos que \alpha \approx 11.310^{\circ} y T = 200\,lbf, entonces la magnitud del peso es:

W = 2\cdot (200\,lb)\cdot \sin 11.310^{\circ}

W \approx 78.447\,lbf

En el Sistema Imperial, las fuerzas son medidas en forma gravitacional, entonces la magnitud de la fuerza gravitacional del peso equivale a la magnitud de su masa. En síntesis, la magnitud de la masa es 78.447\,lbm.

La magnitud de la masa del peso es 78.447 libras-masa.

7 0
3 years ago
A rocket weighs 9800 n what is its mass
rusak2 [61]

Answer:

the mass of 1000 kg

Explanation:

Hope this helps :) mark me as brainliest pls

8 0
3 years ago
Read 2 more answers
Other questions:
  • A student look at ocean waves coming into the beach. An oceanwavd with more energy will
    13·2 answers
  • I need help please please thank you
    8·1 answer
  • Which example best describes a restoring force?
    7·1 answer
  • What is the average rate of change for this exponential function for the interval from x = 2 to x= 4 ?
    12·2 answers
  • What is not a factor affecting impact in a collision; vehicle weight, speed, kinetic energy, centrifugal force
    5·1 answer
  • A tornado passes in front of a building, causing the pressure to drop there by 25% in 1 second. Part A If a door on the side of
    8·1 answer
  • How far do tectonic plates move in a year
    7·1 answer
  • Dimensional formula of current density
    11·2 answers
  • Công thức dùng tính tần số dao động của con lắc lò xò
    6·1 answer
  • A 0.40 kg bead slides on a straight frictionless wire with a velocity of 3.50 cm/s to the right. The
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!