“At what distance from the Earth will a spacecraft on the way to the Moon experience zero net force due to these two bodies because the Earth and Moon pull with equal and opposite forces?” At
roughly 200,000 miles
from the Earth and about 40,000 miles from the Moon, give or take.
At what distance from the Centre of the Earth would the spacecraft experience no resultant force due to the Earth and moon?
So the gravitational equilibrium point is
346,000 kilometers
from Earth’s center, or about 90% of the distance from Earth to the Moon.
Which of the following will be directly affect if you travel from Earth to the moon?
Your body mass
— the amount of matter it takes to make you — doesn’t change regardless of whether you are standing on the moon, the Earth, or weightless in the space capsule taking you from the Earth to the moon. … In this manner, your “weight” doesn’t change, because you still have the same mass.
Which is greater the gravitational force of the Earth pulling on a spacecraft or the gravitational force of the spacecraft pulling on the Earth?
The gravitational force exerted by Earth is still greater due to
its combined mass
with the space probe.
How far from the surface of the moon will a spacecraft experience a net gravitational force of zero?
Answer:
346, 348 Km
.
How many Earth masses is the moon?
| Moon Earth | Mass (10 24 kg) 0.07346 5.9724 | Volume (10 10 km 3 ) 2.1968 108.321 | Equatorial radius (km) 1738.1 6378.1 | Polar radius (km) 1736.0 6356.8 |
|---|
Would the Earth survive without the moon?
Without the moon, a day on earth would only
last six to twelve hours
. There could be more than a thousand days in one year! That’s because the Earth’s rotation slows down over time thanks to the gravitational force — or pull of the moon — and without it, days would go by in a blink.
What if the moon hit Earth?
Once the Moon began it’s trajectory towards the planet, it would
increase the tidal impact it has on us
. By the time it hit the Roche limit, it would be causing tides as high as 7,600 meters (30,000 feet). Our world would be devastated by an army of tsunamis – ten times a day.
How much does a 60 kg astronaut weigh on Earth?
Details of the calculation: Weight = F
g
= mg = (60 kg)*(9.8 m/s
2
) =
588 N
.
Does the sun pull harder on the Earth?
The strength of the gravitational pull is also proportional to the mass of the object. The sun is really massive and really big. … This makes the strength of gravity on the “surface” of the sun (that is, the photosphere, the shiny part we see),
28 times stronger than the force of gravity on the surface of the Earth
.
Does time cause gravity?
Yes,
time goes faster the farther away you are from the earth’s surface
compared to the time on the surface of the earth. This effect is known as “gravitational time dilation”. … Gravitational time dilation occurs because objects with a lot of mass create a strong gravitational field.
At what distance from the surface of the Earth will the net gravitational force 0?
Near the surface of the Earth (sea level), gravity decreases with height such that linear extrapolation would give zero gravity at a
height of one half of the Earth’s radius
– (9.8 m·s
− 2
per 3,200 km.)
How does distance affect gravity?
Since gravitational force is
inversely proportional to the square of the separation distance
between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.
How far from the Earth’s center on a straight line?
The average distance to the centre of the Earth is
6,371 km or 3,959 miles
. In other words, if you could dig a hole 6,371 km, you’d reach the center of the Earth.
At what location from Earth are the gravitational fields of Earth and the moon balanced?
At the Lagrange points
, the gravitational forces of the two large bodies and the centrifugal force balance each other. This can make Lagrange points an excellent location for satellites, as few orbit corrections are needed to maintain the desired orbit.
What is moon made of?
The moon is a rocky satellite that orbits the Earth. It has a thick rocky crust, with
lunar soil called regolith and large basalt deposits
, which are dark-colored rocks formed by rapidly cooled lava. The mantle is made of both solid and semi-solid rock. On the inside of the moon is a solid iron core.
Is Sun bigger than moon?
The sun and the moon are about the same size when you look at them in the sky, though that’s just thanks to the coincidence that the sun is about 400 times farther away than the moon and also
about 400 times bigger
. Another fun coincidence is that the radius of the sun is about twice the distance to the moon.
What is the distance through the Earth?
Earth’s circumference (the distance all the way around the equator) is 24,901 miles (40,075 kilometers). Its diameter (the distance from one side to the other through Earth’s center) is 7,926 miles (about
12,756 kilometers
).
How old is the Earth?
Earth is estimated to be
4.54 billion years old
, plus or minus about 50 million years. Scientists have scoured the Earth searching for the oldest rocks to radiometrically date. In northwestern Canada, they discovered rocks about 4.03 billion years old.
What is length of equator?
An equator divides the planet into a Northern Hemisphere and a Southern Hemisphere. … The Earth is widest at its Equator. The distance around the Earth at the Equator, its circumference, is
40,075 kilometers (24,901 miles)
.
How the radius of the Earth varies from poles to the equator?
The difference of the radii is thus
about 21 km
. An observer standing at sea level on either pole, therefore, is 21 km closer to Earth’s center than if standing at sea level on the Equator.
How much does the Earth cost?
In fact, according to one astrophysicist who came up with a calculation for valuing planets, Earth is worth a bank-breaking
$5 quadrillion dollars
, unsurprisingly the priciest in the solar-system.
What is Earth made of?
The earth is made up of three different layers: the crust, the mantle and the core. This is the outside layer of the earth and is made of solid rock,
mostly basalt and granite
. There are two types of crust; oceanic and continental. Oceanic crust is denser and thinner and mainly composed of basalt.
What exactly is a black hole?
A black hole is
an area of such immense gravity that nothing—not even light—can escape from it
. Black holes form at the end of some stars’ lives. The energy that held the star together disappears and it collapses in on itself producing a magnificent explosion.
Is our sun yellow or white?
The color of the sun is white
. The sun emits all colors of the rainbow more or less evenly and in physics, we call this combination “white”. That is why we can see so many different colors in the natural world under the illumination of sunlight.
Is the sun bigger than the Earth?
The sun lies at the heart of the solar system, where it is by far the largest object. It holds 99.8% of the solar system’s mass and is
roughly 109 times the diameter of the Earth
— about one million Earths could fit inside the sun.
Can the moon crash into Earth?
Long answer: The Moon is in a stable orbit around Earth.
There is no chance that it could just change its orbit and crash into Earth
without something else really massive coming along and changing the situation. The Moon is actually moving away from Earth at the rate of a few centimetres per year.
Can you live without the Sun?
All plants would die and, eventually, all animals that rely on plants for food — including humans — would die, too. While some inventive humans might be able to survive on a Sun-less Earth for several days, months, or even years, life
without the Sun would eventually prove to be impossible to maintain on Earth
.
What if the Sun exploded?
The good news is that if the Sun were to explode – and it will eventually happen – it wouldn’t happen overnight. … During this process,
it will lose its outer layers to the cosmos
, leading to the creation of other stars and planets in the same way that the violent burst of the Big Bang created Earth.
How big is the biggest star?
Although it’s difficult to pin down the exact traits of any given star, based on what we know, the largest star is UY Scuti, which is
some 1,700 times as wide as the Sun.
What if Earth had 2 moons?
If Earth had two moons,
it would be catastrophic
. An extra moon would lead to larger tides and wipe out major cities like New York and Singapore. The extra pull of the moons would also slow down the Earth’s rotation, causing the day to get longer.
What would happen if the Sun died?
After the Sun exhausts the hydrogen in its core, it will balloon into a red giant
, consuming Venus and Mercury. Earth will become a scorched, lifeless rock — stripped of its atmosphere, its oceans boiled off. … While the Sun won’t become a red giant for another 5 billion years, a lot can happen in that time.
What if the Sun disappeared?
With no sunlight,
photosynthesis
would stop, but that would only kill some of the plants—there are some larger trees that can survive for decades without it. Within a few days, however, the temperatures would begin to drop, and any humans left on the planet’s surface would die soon after.
What is the true weight of a person if he is 75kg?
The actual value is
around 165.34 lbs
.
How old is the moon?
The most widely accepted origin explanation posits that the Moon formed
about 4.51 billion years ago
, not long after Earth, out of the debris from a giant impact between the planet and a hypothesized Mars-sized body called Theia.
What is the mass of a 450 n Girl on Earth?
So mass of the girl (m) = 450/9.8 =
45.9 kg
.
Does the Sun have more gravity than Earth?
The Sun makes up more than 99 percent of the total mass of the solar system. Because it is so massive, the Sun exerts a lot of gravity, or pull, on the planets—enough to make them orbit around it. …
The Sun’s gravity is about 27.9 times that of Earth
, and, in a small way, it helps to control the tides on Earth.
What color is the Sun?
When we direct solar rays through a prism, we see all the colors of the rainbow come out the other end. That’s to say we see all the colors that are visible to the human eye. “Therefore the sun is
white
,” because white is made up of all the colors, Baird said.
Is there gravity in space?
In fact,
a small amount of gravity can be found everywhere in space
. Gravity is what holds the moon in orbit around Earth. … Gravity, however, does become weaker with distance. It is possible for a spacecraft to go far enough from Earth that a person inside would feel very little gravity.
