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3 years ago

What is global warming definition???

Physics

2 answers:

GuDViN [60]3 years ago

6 0

An increase in overall temperatures of the atmosphere caused by the green house effect.

otez555 [7]3 years ago

6 0

Answer:

Global warming is an effect on our planet that is caused by carbon dioxide being trapped in our atmosphere. When the carbon dioxide is trapped, it is bouncing off the bottom layer of the clouds. Some escapes into outer space, but most of it stays. We cause global warming, by using vehicles, making asphalt, burning fossil fuels, and many more.

An effect of global warming is our poles oceans are melting. When our polar caps melt most of the way, we will experience a lot of flooding for many coastal cities. We will also experience extreme weather, like stronger hurricanes, larger thunderstorms, and larger areas effected by other natural disasters.

One thing we can do to stop or slow down these effects is to use vehicles less (or make better vehicles for the environment), stop burning fossil fuels, and make a world-wide law to prevent certain things from commencing. Nuclear bombs are also a problem to global warming. We will hopefully never reach that problem.

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In the high jump, the kinetic energy of an athlete is transformed into gravitational potential energy without the aid of a pole.

Fiesta28 [93]

Answer:

6.0 m/s

Explanation:

According to the law of conservation of energy, the total mechanical energy (potential, PE, + kinetic, KE) of the athlete must be conserved.

Therefore, we can write:

$KE_i+PE_i =KE_f+PE_f$

$\frac{1}{2}mu^2+0=\frac{1}{2}mv^2+mgh$

where:

m is the mass of the athlete

u is the initial speed of the athlete (at the bottom)

0 is the initial potential energy of the athlete (at the bottom)

v = 0.80 m/s is the final speed of the athlete (at the top)

$g=9.8 m/s^2$ is the acceleration due to gravity

h = 1.80 m is the final height of the athlete (at the top)

Solving the equation for u, we find the initial speed at which the athlete must jump:

$u=\sqrt{v^2+2gh}=\sqrt{0.80^2+2(9.8)(1.80)}=6.0 m/s$

4 0

3 years ago

PLZZZ HELPPP ASAP<br> I really need help as soon as possible

julsineya [31]

Answer:

Friction

Explanation:

As the toy cars rolls away, more friction is created. The more friction there is, the more friction on surface rubs against another which creates friction which in-term slows it down. Hope this helps.

4 0

2 years ago

Help a girl out ?! Plz ill give brainlest

shepuryov [24]

Answer:

I am pretty sure it is B.

Explanation:

I hope this helped if it didn't I am truly sorry

5 0

2 years ago

Read 2 more answers

Explain how heat (thermal energy) can change the motion (kinetic energy) of the particles in objects.