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Stella [2.4K]
3 years ago
6

Im sorry i dont understand pls helpp -w-

Physics
2 answers:
rodikova [14]3 years ago
7 0
Temperature is related to a physical change of a substance because it determines the state of the object via cooling, heating or freezing. To make the concept clear, hear are some examples:-
1. Chocolate melts and turns into liquid form. This is a physical change
2. Water freezes via cooling and forms ice which is in a solid state. This is another physical change

Hope this helped and have a nice day : )

Savatey [412]3 years ago
3 0

Explanation:

it's about kinetic energy

with more heat particles in a substance get energy

with more cold atoms or molecules lose energy

both change the way particles are arranged

the way particles are arranged make something a has liquid or substance

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A string has a mass of 12.3 g. The string is stretched with a force of 8.67 N, giving it a length of 1.81 m. Then, the string vi
Marina CMI [18]

Answer:

λ = 0.905m

Explanation:

TThe wavelength (λ) only depends on the harmonic (n) and the length of the string (L):

λ = 2L/n

λ = 2*1.81m /4

λ = 0.905m

4 0
4 years ago
Using an elastic cord, the astronaut in the black shirt pulls the astronaut with the red shirt back towards him before releasing
pishuonlain [190]

Answer:

50 T-shirt Design Ideas That Won't Wear Out - 99Designshttps://99designs.com › blog › creative-inspiration › t-s...

Whatever message your t-shirt needs to send, we've got 50 t-shirt design ... Illustrated chicken astronaut t-shirt ... of the challenges associated with a t-shirt for a business is getting people to wear it. ... shirt is a great way to create memorabilia that participants can look back on ... Graphic tees are what shirts were made for.

Explanation:

8 0
3 years ago
A jet travels 1000 kilometers in 5 hours. What is its average speed?
nlexa [21]

Given:

Total distance = 1000 kilometer

Total time = 5 hours

To find:

Average speed = ?

Formula used:

v_{avg} = \frac{s}{t}

Where v_{avg} = average speed

s = total distance

t = total time

Solution:

Average speed of the jet is given by,

v_{avg} = \frac{s}{t}

Where v_{avg} = average speed

s = total distance

t = total time

v_{avg} = \frac{1000}{5}

v_{avg} = 200 km/ h

Thus, average speed of the jet is 200 km/h.

Hence, Option (A) is correct.


7 0
3 years ago
HURRY!!!!
Bingel [31]
I'm not exactly sure but I'm thinking that it's the last one. Sorry if I'm wrong
4 0
3 years ago
Read 2 more answers
Un avión vuela a una velocidad de 900 km/h. Si tarda en viajar desde Canarias hasta la península 180 s ¿qué distancia recorre en
wel

Answer:

El avión recorrió 45 km en los 180 s.

Explanation:

La relación entre velocidad, distancia y tiempo se da de la siguiente manera;

Velocidad= \dfrac{Distancia}{Hora}

Por lo cual los parámetros dados son los siguientes;

Velocidad = 900 km/h = 250 m / s

Tiempo = 180 s

Estamos obligados a calcular la distancia recorrida

De la ecuación para la velocidad dada arriba, tenemos;

Distancia recorrida = Velocidad pf viaje × Tiempo de viaje

Distancia recorrida = 900 km/h × 180 s = 900

Distancia recorrida = 900 km/h × 1 h/60 min × 1 min/60 s × 180 s = 45 km

Por lo tanto, el avión viajó 45 km en 180 s.

8 0
4 years ago
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