Phy,chem and math discussion thread

[James Brown]

All questions and stuff about physics, chemistry and maths post it in here!

 

[James Brown]

Ok so I start, If the force of the ball moving on the floor is greater than the friction of the floor, will the ball deccelerate to constant velocity like free falling does or it will keep deccelerate to zero? If you don’t understand I can find or draw you a picture

I know this thread is boring I expect no one will like it so nvm

 

[Horus Lupercal]

I know this thread is boring I expect no one will like it so nvm

Ah yes, some good old self depreciation. That'll get people to interact with me.

If the force of the ball moving on the floor is greater than the friction of the floor, will the ball deccelerate to constant velocity like free falling does or it will keep deccelerate to zero?

Well, it depends on if the force is constant or not. A one off force (or push) and the ball will eventually roll to a stop due to things like drag, rolling resistance etc.
If the force is constant, i.e., it's rolling downhill, then the friction against the floor matters not, because it's rolling not sliding. It'll keep speeding up until the drag and rolling resistance force equals the force being applied to it.

 

[yonkee]

If there’s friction the ball will eventually decelerate to 0 right?

 

[Horus Lupercal]

If there’s friction the ball will eventually decelerate to 0 right?

See above.

Remember, it's a ball, not a sled.

 

[The epic chicken]

in sfs how much does 1 kilotonne weigh on the moon

 

[Horus Lupercal]

in sfs how much does 1 kilotonne weigh on the moon

1 thousand tonnes.

 

[The epic chicken]

1 thousand tonnes.

how much weaker is the moons gravity compared to earth

 

[LP64350]

how much weaker is the moons gravity compared to earth

The answer is google...

 

[The epic chicken]

The answer is google...

thanks

 

[Pink]

1 thousand tonnes.

He didn't ask how much it masses.

 

[Blazer Ayanami]

1 thousand tonnes.

He didn't ask how much it masses.

Correct. He asked about the weight, not the mass.

 

[Horus Lupercal]

On the contrary.

A kiloton on the moon, is a kiloton on the moon.

The correct question would be, how much would a kiloton on Earth, weigh on the moon?

Or

How much lower is lunar gravity than Earths gravity?

Or

How do I access Google?

 

[James Brown]

It'll keep speeding up until the drag and rolling resistance force equals the force being applied to it.

So it will eventually move in a constant velocity and won't stop if keep rolling downhill right?

 

[GERMAN HELMET]

All questions and stuff about physics, chemistry and maths post it in here!

is astatium real
can steel or aluminium burn like wood QOTD?

 

[Horus Lupercal]

So it will eventually move in a constant velocity and won't stop if keep rolling downhill right?

Assuming nothing changes, like running out of hill to roll down, yes.

is astatium real
can steel or aluminium burn like wood QOTD?

Yes. Aluminium, under the right conditions, burns quite well.

 

[The epic chicken]

On the contrary.

A kiloton on the moon, is a kiloton on the moon.

The correct question would be, how much would a kiloton on Earth, weigh on the moon?

Or

How much lower is lunar gravity than Earths gravity?

Or

How do I access Google?

ow much would a kiloton on Earth, weigh on the moon?

 

[Pink]

A kilotonne on Earth has a mass of 1 kilotonne on the moon.
A kilotonne on the moon weighs 165 tonnes.

Or 1620 Kilonewtons if you want to be all sciency, which is best for calculating TWR and such.

 

[The epic chicken]

A kilotonne on Earth has a mass of 1 kilotonne on the moon.
A kilotonne on the moon weighs 165 tonnes.

Or 1620 Kilonewtons if you want to be all sciency, which is best for calculating TWR and such.

thats light

 

[Horus Lupercal]

thats light

The moons gravity is 1/6th what we have here.

 

[Blazer Ayanami]

So everything is 1/6 of its mass here.

 

[James Brown]

How come evaporation can cause cooling?

 

[Marmilo]

So everything is 1/6 of its mass here.

Not mass. Weight. Mass isn't affected by gravity.

 

[Horus Lupercal]

How come evaporation can cause cooling?

The heat has to come from somewhere.

 

[Pink]

How come evaporation can cause cooling?

Evaporation takes energy. Taking energy causes cooling.