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3 years ago

How have human factors contributed to climate change, and what evidence supports these factors?

Physics

2 answers:

lukranit [14]3 years ago

8 0

By factorys. Because the smoke that builds up from them

dimaraw [331]3 years ago

6 0

Humans and their inventions have hurt the environment. This has been tested and has shown that factories and other machines let out dangerous fumes into the atmosphere.

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In the broadest sense, what was the kinectic molecular theory designed to explain?

faust18 [17]

Answer: Kinetic Molecular Theory claims that gas particles are in continuous motion and completely demonstrate elastic collisions. Kinetic Molecular Theory can be used to describe the rules of both Charles and Boyle. A series of gas particles only has an average kinetic energy that is directly proportional to absolute temperature.

4 0

2 years ago

1,021 kg x 9.8m/s/s =

drek231 [11]

The anwser is 10005.8 newtons

3 0

2 years ago

Read 2 more answers

The range is the horizontal distance from the cannon when the pumpkin hits the ground. This distance is given by the product of

jarptica [38.1K]

The answer is 45 degrees. I am not doing a field experiment for you that involves a cannon and a day's work, for 5 points.

3 0

3 years ago

A seaplane flies horizontally over the ocean at 50 meters/second. It releases a buoy, which lands after 21 seconds. What's the v

pochemuha

The motion of the buoy is a composition of two independent motions:
- a uniform motion on the horizontal axis, with constant speed vx=50 m/s
- an uniformly accelerated motion on the vertical axis, with constant acceleration $g=9.81 m/s^2$

Since we want to find the vertical displacement, we are only interested in the vertical motion.
The law of motion on the vertical direction is given by:
$y(t)=h+v_{0y} t+ \frac{1}{2}gt^2$
where
h is the initial height of the buoy
$v_{0y}$ is the initial vertical velocity of the buoy, which is zero
t is the time

We know that the buoy lands after t=21 seconds, this means that the vertical position at t=21 s is y(21 s)=0. If we substitute these data into the equation, we can find the value of h, the initial height of the buoy:
$0=h+ \frac{1}{2}gt^2$
$h= -\frac{1}{2}gt^2= -\frac{1}{2}(9.81 m/s^2)(21 s)^2=-2163 m$
And this corresponds to the vertical displacement of the buoy.

7 0

3 years ago

A 4kg block slides freely across a rough surface such that the block slows down with an acceleration of −1.25 m/s2 . What is the

Sophie [7]

Answer:

The coefficient of kinetic friction between the block and the surface is 0.127.

Explanation:

Given that,

The mass of a block, m = 4 kg

The acceleration of the block, a = -1.25 m/s²

We need to find the coefficient of kinetic friction between the block and the surface. The force of friction is given by :

$F=\mu mg\\\\ma=\mu mg\\\\\mu=\dfrac{a}{g}\\\\\mu=\dfrac{1.25}{9.8}\\\\\mu=0.127$

So, the coefficient of kinetic friction between the block and the surface is 0.127.

6 0

2 years ago