Table of Contents
How big is Earth compared to a basketball?
The Earth’s diameter is about 12,742km, while a the diameter of a regulation basketball is about 24.26cm.
How many basketballs cover the earth?
Ratio = 1.46905327196157e23 (the Earth is roughly 147 sextillion times larger than a basketball). That means we’ve got just over 100 sextillion basketballs packed into an oblate spheroid the size of the Earth. That’s nearly 15 quadrillion basketballs for every human being on Earth.
What happens if you compress the sun?
A rocket must be launched from the surface of Earth at a very high speed if it is to escape the pull of Earth’s gravity. If the Sun is compressed, its mass will remain the same, but the distance between a point on the Sun’s surface and the center will get smaller and smaller.
How big would Earth be if the Sun was a basketball?
If the Sun was a basketball (about 23 cm in diameter), then the Earth would be the size of a tiny bead, just over 2 mm wide. Since the average Earth-Sun distance is about 150 million km, this bead would sit about 25 m away from the basketball.
How big would Earth be if the Sun was the size of the Earth?
In fact, it would take roughly 1,300,000 planet Earths to fill the entire Sun! But what if it only took one? Earth would be a very different place if it were the same size as the Sun. Just imagine our whole planet’s topography being stretched out.
Is the Earth smoother than a basketball?
In other words, it must have no pits or bumps more than 0.005 inches in height. That’s pretty smooth. The ratio of the size of an allowable bump to the size of the ball is 0.005/2.25 = about 0.002. If you shrank the Earth down to the size of a billiard ball, it would be smoother.
How big would a mole of a basketball be?
A mole of donuts is 6.02 x 1023 donuts, and a mole of basketballs is 6.02 x 1023 basketballs—and that’s a lot of basketballs! A mole of basketballs would just about fit into a ball bag the size of the Earth!…
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What would happen if the Sun was bigger?
Bigger stars are hotter and bluer than the whitish-yellow sun, while smaller stars are cooler and redder. Life would be: Nonexistent, at least as we know it. In the half-mass sun scenario, the habitable zone would shift closer to the star; if the Earth orbited at the same distance, our water would freeze solid.
What happens to the ball when it hits the Earth?
The air in the ball acts like a spring—it gets compressed and expands again. During the collision, some of the ball’s energy is converted into heat. As a consequence, the ball shoots up with less energy than it had when it reached Earth.
Can physics explain what happens when a ball bounces?
Let’s see if physics can explain what happens. When a bouncing ball falls, it initially gains speed or kinetic energy—the energy of motion. When it reaches Earth, it collides head-on with an incredibly massive object that is, from your perspective, at rest.
What is the magnitude of the displacement of a soccer ball?
Figure 4.11 The total displacement s of a soccer ball at a point along its path. The vector along the horizontal and vertical axes. Its magnitude is s and it makes an angle θ with the horizontal. To describe projectile motion completely, we must include velocity and acceleration, as well as displacement.
Why do heavy balls fall faster than light balls?
It is interesting to compare a heavy and a light ball as they fall from the same height. Both balls will fall at a similar speed, but because kinetic energy is proportional to the mass of the object, the heavy ball reaches Earth with more energy.