what happens to the density, volume, mass, and shape of an ice cube put in a glass jar and left out in the Sun.

Algunas fabricas de balones de fútbol ubicadas en la costa inflan los balones que van a ser vendiéndose las ciudades como pasto,

otez555 [7]

Answer:

balloon is rigid the amount of gas is constant inside the interior pressure of the balloon is constant and in these cities it becomes equal to or slightly higher than atmospheric pressure

Explanation:

Este ejercicio es referente a la mecánica de fluidos, usemos la expresión para la presión

P = ρ g h

En es el caso del balón usemos la presión en la pared extrema, llamemos P la presión por el gas en el interior y P_ext la presión atmosférica del lugar

cuando se llena el valor en una ciudad de baja altura la presión atmosférica es mas alta

P_int1 < P_ext1

por lo cual la pared del balón no se mantiene rígida.

Cuando el balón es trasladado a una ciudad con mayor altura sobre el nivel del mar la presión exterior disminuye

P_ext2 = ρ g h₂ < P_ext1

en promedio la presión disminuye con la altura en 0,029 atm cada 250 m

por lo tanto como la cantidad de gas es constante en el interior la presión interior del globo es constante y en esta ciudades se hace igual o un poco mayor que la presión atmosférica, en consecuencia la pared del globo esta rígida

P_int2 >P_ext2

Traslate

This exercise is related to fluid mechanics, let's use the expression for pressure

P = ρ g h

In the case of the balloon, let's use the pressure on the extreme wall, let's call P the pressure for the gas inside and P_ext the atmospheric pressure of the place

when the value is filled in a low-lying city the atmospheric pressure is higher

P_int1 <P_ext1

therefore the wall of the ball does not remain rigid.

When the ball is transferred to a city with higher altitude above sea level, the external pressure decreases

P_ext2 = ρ g h <P_ext1

on average the pressure decreases with height by 0.029 atm every 250 m

therefore as balloon is rigid the amount of gas is constant inside the interior pressure of the balloon is constant and in these cities it becomes equal to or slightly higher than atmospheric pressure, therefore the wall of the

Pint 2> Pe

8 0

3 years ago

Determine the values of mm and nn when the following average magnetic field strength of the Earth is written in scientific notat

joja [24]

Answer:

m = 4.51 and n = -5

Explanation:

The average magnetic field strength of the Earth is 0.0000451 T. We need to write the value of magnetic field strength of the Earth in scientific notation. In scientific notation, any value is given by :

$N=m\times 10^n$ .........(1)

Where

m is a real number

n is any integer

Here,

$N=4.51\times 10^{-5}$ .......(2)

On comparing equation (1) and (2), we get the values as :

m = 4.51 and n = -5

Hence, this is the required solution.

6 0

3 years ago

Explain the difference between a fuse and a circuit breaker if you were designing a circuit for a reading lamp would you include

sesenic [268]

The answer is Fuse. Circuit breakers and fuses are generally known as "Overload Protection Devices. The difference between a fuse and a circuit breaker is that a fuse is a one time circuit element while a circuit breaker is a multiple use device. If you were designing a circuit for a reading lamp, a fuse would do. Since almost all household installed a circuit breaker for outlets, etc,

7 0

3 years ago

You are given a material which produces no initial magnetic field when in free space. When it is placed in a region of uniform m

seropon [69]

Answer:

This material exhibits paramagnetism.

Explanation:

A paramagnetic material has these features: It doesn’t have any magnetic properties when placed in an external magnetic field, it gains and then loses the magnetic property as the external field is removed.

Such materials have magnetic moments oriented in random directions, thus making the net magnetic moment, zero. But when placed in an external field, they do possess a net magnetic moment. When the magnetic field is removed, they lose the magnetic property.

Thus, the material which produces no initial magnetic field when placed in a uniform magnetic field produces an additional internal magnetic field parallel to the original field. Also, it loses the magnetic properties as soon as the external magnetic field is removed. Then, the magnetism the material exhibits is paramagnetic.

7 0

3 years ago

Convert 2536 mm/min to m/s. Use dimensional analysis.

Deffense [45]

Answer:

As we know that, 

1 mm/min = 1.66667E-5 m/s
1 m/s = 60000 mm/min

Now, come to the question - 

$\\ \implies \sf \: 2536 \times 1.66667E-5 m/s \\ \\ \\ \implies \sf \blue{0.0422666667 \:m/s } \\$

Result : 2536 mm/min = 0.0422666667 m/s.

6 0

4 years ago