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3 years ago

How does Antarctic ice help regulate our Earth's climate?

Physics

2 answers:

____ [38]3 years ago

6 0

Answer:

correct answer is option A(It reflects the Sun's heat energy, keeping the Earth cool.

Explanation:

Antarctic ice has an impotent role in regulating our earth's climate. We know that color of ice is white and white color is good reflector. When light from sun falls on this ice about 80% of light is reflected back . In This way antarctic ice maintain the polar region at low temperature and regulate our earth's climate.

Therefore,

Antarctic ice help regulate our Earth's climate by reflecing the Sun's heat energy to keep the Earth cool.

eimsori [14]3 years ago

5 0

A. it reflects the suns heat energy, keeping the Earth cool.

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4 years ago

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A 185 g block is pressed against a spring of force constant 1.60 kN/m until the block compresses the spring 10.0 cm. The spring

denis-greek [22]

Answer:

d = 5.10 m

Explanation:

As we know that here on the plane of the inclined there is no frictional force

So in these cases we can say that total mechanical energy will always remains conserved

so here we can say that

spring potential energy = gravitational potential energy of the block

as we know from the formula

$\frac{1}{2}kx^2 = mgh$

now plug in the values in it

$\frac{1}{2}(1.60 \times 10^3)(0.10)^2 = (0.185)(9.81)h$

$8 = 1.81 h$

$h = 4.42 m$

now as we know that the angle of inclination is 60 degree and height raised is 4.42 m

so here maximum distance moved along the inclined plane will be

$\frac{h}{d} = sin60$

$d = \frac{h}{sin60}$

$d = \frac{4.42}{sin60} = 5.10 m$

6 0

3 years ago

What direction does centripetal acceleration point?

Nesterboy [21]

Answer:

Inward

Explanation:

As the centripetal force acts upon an object moving in a circle at constant speed, the force always acts inward as the velocity of the object is directed tangent to the circle. This would mean that the force is always directed perpendicular to the direction that the object is being displaced. hope this helps :)

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3 years ago