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3 years ago

Why are asteroids and comets important to our understanding of solar system history?

Physics

1 answer:

Alecsey [184]3 years ago

8 0

Answer:

Explained

Explanation:

It is widely believed among the space scientist that Asteroids and comets are the remains of the material that has formed our solar system. By studying Asteroids and comets can get information pre era of our solar system, because the asteroids came being at the start of the solar system. The chemical composition, the size and the process of formation of proto stellar nebula. The impact of collision of asteroid on Earth lead to the extinction of Dinosaurs. Previously it was believed that water come on Earth because of comets, but later proved that water come into being on Earth because of Asteroids.

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5. How much heat is generated when an

Mila [183]

Answer:

I HOPE THIS IS CORRECT

Explanation:

Power of water =2 kw=2000w

Mass of water =200kg

difference in temperature ΔT=70−10=60oC

Concept

energy required to heat the water = energy given by water in time t=pt

energy required to increase tempeature of water by 60oC,Q=msΔT

S= specific heat =4200J/kgoC

pt=msΔT

2000×t=200×4200×60

t=25200

or t=25.2×103sec.

6 0

3 years ago

Suppose the gas resulting from the sublimation of 1.00 g carbon dioxide is collected over water at 25.0◦c into a 1.00 l containe

AlexFokin [52]

Answer:

0.56 atm

Explanation:

First of all, we need to find the number of moles of the gas.

We know that

m = 1.00 g is the mass of the gas

$Mm=44.0 g/mol$ is the molar mass of the carbon dioxide

So, the number of moles of the gas is

$n=\frac{m}{M_m}=\frac{1.00 g}{44.0 g/mol}=0.023 mol$

Now we can find the pressure of the gas by using the ideal gas equation:

$pV=nRT$

where

p is the pressure

$V=1.00 L = 0.001 m^3$ is the volume

n = 0.023 mol is the number of moles

$R=8.314 J/mol K$ is the gas constant

$T=25.0^{\circ}+273=298 K$ is the temperature of the gas

Solving the equation for p, we find

$p=\frac{nRT}{V}=\frac{(0.023 mol)(8.314 J/mol K)(298 K)}{0.001 m^3}=5.7 \cdot 10^4 Pa$

And since we have

$1 atm = 1.01\cdot 10^5 Pa$

the pressure in atmospheres is

$p=\frac{5.7\cdot 10^4 Pa}{1.01\cdot 10^5 Pa/atm}=0.56 atm$

5 0

4 years ago

A beverage manufacturer wants to increase the solubility of carbon dioxide (CO2) in its carbonated drinks.

Brut [27]

D. Decreasing its temperature

Explanation:

Decreasing the temperature of the carbon dioxide gas to be dissolved in the carbonated drink will most likely increase the solubility of the gas in the drink.

Temperature has considerable effects on the solubility of gases in liquids.

Dissolution involves the surrounding of ions by water molecules, in this case, the carbon dioxide gas is to be surrounded by the liquid beverage medium.
Increasing pressure increases the rate at which gases are soluble. At high pressure, the gases are brought more in contact with the liquid medium.
Decreasing temperature aids gas solubility.
If the temperature of gases are increased, they will not want to stay in solution as they gain a high amount of kinetic energy.
Therefore, it will increase their randomness and the urge to leave the solution.
Decrease in temperature and increase in pressure makes gas solubility to be fast.

Learn more:

Rate of chemical reactions brainly.com/question/6281756

#learnwithBrainly

6 0

3 years ago

What is the momentum of a 50 at a speed of 5m/s

aleksandr82 [10.1K]

50*5=250
Momentum will be 250kgm/s^2

5 0

3 years ago

Coherent monochromatic light of wavelength l passes through a narrow slit of width a, and a diffraction pattern is observed on a

geniusboy [140]

Answer:

λ = a

Explanation:

This is a diffraction exercise that is described by the expression

a sin θ = m λ

sin θ = m λ/ a

the first zero of the diffraction occurs for m = 1

sin θ = λ / a

angles are generally very small and are measured in radians

sin θ = θ = y / x

we substitute

$\frac{y}{x} = \frac{\lambda}{a}$

the width of the central maximum is twice the distance to zero

w = 2y

in the exercise indicate that this width is equal to twice the distance to the screen (2x)

W = 2x

2y = 2x

we substitute

1 = λ/ a

λ = a

we see that the width of the slit is equal to the wavelength used.

3 0

3 years ago