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kvv77 [185]
3 years ago
9

All of the outer planets are much larger than the inner planets true or false

Physics
1 answer:
Rama09 [41]3 years ago
4 0
That statement is false because yes Jupiter and Saturn are large, however, planets like Uranus and Neptune are quite small if not smaller than some of the inner planets. 
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The helicopter was deformed and destroyed in the _______ collision.
ASHA 777 [7]

There are two types of collision in physics which are named as elastic collision and inelastic collision.

Elastic collision is that type of collision in which both kinetic energy and momentum is conserved i.e total kinetic energy and momentum before collision is equal to the total kinetic energy and momentum after collision.As kinetic energy is conserved here,so less or ideally no damage occurs to the colliding bodies.

Inelastic collision is that type of collision in which only momentum is conserved but not kinetic energy .After the collision the kinetic energy is lost in forms heat,sound ,light etc.

Normally any deformation and destruction is due to the inelastic collision which results in the loss of kinetic energy.

Hence the helicopters were destroyed and deformed due to inelastic collision.

7 0
3 years ago
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When doing numerical calculations involving temperature, you need to pay particular attention to the temperature scale you are u
Mrac [35]

1) 293 ^{\circ}C

2) 859^{\circ}C

Explanation:

1)

The average kinetic energy of the molecules of an ideal gas is directly related to the Kelvin temperature of the gas, by the formula

KE=\frac{3}{2}kT

where

KE is the kinetic energy

k is the Boltzmann constant

T is the Kelvin temperature

We can say  therefore that the average kinetic energy of the particles is directly proportional to the absolute temperature of the gas; so, we can write:

KE\propto T

And therefore

\frac{KE_1}{KE_2}=\frac{T_1}{T_2} (1)

In this problem, we have:

KE_1 = K_{10} is the initial kinetic energy of the molecules when the temperature of the gas is

T_1=10^{\circ}+273=283 K

Here we want to find the temperature T_2 at which the average kinetic energy of the particles is

KE_2=2K_{10}

So, twice the initial value. Substituting into eq.(1) and solving for T2, we find:

T_2=\frac{T_1 KE_2}{KE_1}=\frac{(283)(2K_{10})}{K_{10}}=566 K

Converting into Celsius degrees,

T_2=566-273=293 ^{\circ}C

2)

The root-mean-square (rms) speed of the molecules in a gas is given by the equation

v=\sqrt{\frac{3kT}{m}}

where

k is the Boltzmann constant

T is the Kelvin temperature of the gas

m is the mass of each molecule

Therefore, from the equation we can say that the rms speed is proportional to the square root of the temperature:

v\propto \sqrt{T}

So we can write:

\frac{v_1}{v_2}=\frac{\sqrt{T_1}}{\sqrt{T_2}} (2)

where in this problem:

v_1 = v_{rms} is the rms speed of the molecules when the temperature is

T_1=10^{\circ}C+273=283 K

v_2=2v_{rms} is the final rms speed of the molecules

Solving eq.(2), we find the temperature at which the rms speed is twice the initial value:

T_2=T_1 (\frac{v_2}{v_1})^2=(283)(\frac{2v_{rms}}{v_{rms}})^2=1132 K

Converting into Celsius degrees,

T_2=1132-273=859^{\circ}C

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3 years ago
A box is pushed horizontally with constant speed across a rough horizontal surface.
Natasha_Volkova [10]

Answer:

what is the answers? so i can't answer.

Explanation:

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3 years ago
How does the movement of particles of matter change when temperature decreases
Zanzabum
INCREASE in temperature of the material practically increase the energy of the particles. which increases their motion due to increase in energy . thus when the temperature is decreased the energy level decreases which causes the particle's motion to slow down.. the motion of the particle is highly reduced when the temperature is lowered
4 0
3 years ago
Which words describe the composition of the inner planets ? Select three options,
IgorLugansk [536]

Answer:a b c

Explanation: I’m not sure tho

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3 years ago
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