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3 years ago

Why is information about comets, asteroids, and meteoroids important for understanding the development of the solar system?

Physics

1 answer:

ra1l [238]3 years ago

7 0

It is important because in some way parts of meteoroids made earth which is a part of our solar sysytem

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Suppose you were marooned on a tropical island and had to use seawater (density 1.10 g·cm3) to make a primitive barometer. what

Paul [167]

We know that P = hρg

Where:

P - pressure Pa,

h - height in meter,

ρ – would be the density in kg / m^3; and

g - acceleration due to gravity is m / s^2

p = hρg if h = 0.735 meter, ρ = 13600 kg / meter^3, g = 10 meter/ sec^2

p = 0.735*13600*10 = 99960 Pa or

P = 1 x 10^5 Pa

Now with sea water if we have to make a barometer:

ρ = 1100 kg / meter^3 (given)

P = hρg if we put the value of P calculated and the value of ρ = 1100 kg / meter^3 given, we will

get, 1 x 10^5 = h*1100*10

therefore, h = 9.09 meter or 29.82 feet of water.

3 0

4 years ago

If you ride your bike at an average speed of 2 km/h and need to travel a total distance of 20 km, how long will it take you to r

love history [14]

Answer:

Time taken to reach your destination will be 10hours

Explanation:

Recall the formula for Speed;

speed=Total distance/Total time taken

Speed=2km/h

Total distance=20km

Time taken=x

let x be the unknown time taken

Input each values into the formula;

2=20/x

Making x subject of the equation

x=20/2

x=10

Total time taken =10hours.

3 0

3 years ago

Read 2 more answers

A dog runs at 35 m/s at 45 degrees N of E. What are its x and y components (all answers

pickupchik [31]

Answer:

its x and y component is 24.749m/s

Explanation:

Given

Speed of the dog = 35m/s

x component of the speed = xcos theta

y component of the speed = ycos theta

Given theta =45 degrees

x-component = 35cos45

x-component = 35(0.7071)

x-component = 24.749m/s

y-component = 35sin45

y-component = 35(0.7071)

y-component = 24.749m/s

Hence its x and y component is 24.749m/s

5 0

3 years ago

Wind blows to where there is a higher..

kumpel [21]

Temperature.........

6 0

3 years ago

Read 2 more answers

Object moving on the

Shalnov [3]

Answer:

The acceleration of the object during the motion is 1.6 m/s²

Explanation:

Lets explain how to solve the problem

An object moving on the x-axis with a constant acceleration

Its distance increases 80 meter in 5 seconds

Its final velocity is 20 m/s

We need to find the acceleration of the object during this motion

To solve the problem we will use two equations:

First: $s=ut+\frac{1}{2}at^{2}$ , where s is the displacement, u is the

initial velocity, t is the time, and a is the acceleration

Second: v = u + at, where v is the final velocity

s = 80 , t = 5 , v = 20 we have two missing a and u, so we will use the

system of equations to find them

Substitute s, t in the first equation

$80=u(5)+\frac{1}{2}a(5)^{2}$

80 = 5u + 12.5a

5u + 12.5a = 80 ⇒ (1)

Substitute V and t in the second equation

20 = u + a(5)

20 = u + 5a

u + 5a = 20 ⇒ (2)

Lets solve equations (1) and (2)

Multiply equation (2) by -5 to eliminate u

-5u - 25 a = -100 ⇒ (3)

Add equations (1) and (3)

-12.5 a = -20

Divide both sides by -12.5

a = 1.6

The acceleration of the object during the motion is 1.6 m/s²

3 0

3 years ago