40 pounds. just divide : 100 divided by 60 =40
The surface gravity of Neptune is thought to be about 1.14 times the gravity on Earth, so 100 kg on Earth would weigh about 114 kg on Neptune--except that Neptune is a gas planet and has no solid surface on which the 100kg rock could be weighed.
They would weigh 112.5lbs.
If you weighed 100 lbs on Earth you would weigh 112.5 lbs on Neptune
If you weighed 100 lbs on Earth you would weigh 112.5 lbs on Neptune.See related for how much you would weigh on other planets.
You would weigh 119 pounds on Neptune if you were 100 pounds on Earth. However, Neptune is a gas planet consisting of a methane atmosphere so you can't actually stand on it.
Neptune does NOT have the same gravity as Saturn. If you weighed 100 units on Earth, you would weigh 106.4 units on Saturn and 114 units on Neptune.
Neptune's gravity is 1.14 times the earths gravity. So if you weigh 100 pounds you would weigh 114 on Neptune.
You would weigh more on the following planets:Jupiter (254 lbs.)Saturn (108 lbs.)Neptune (119 lbs.)
if you weighed 100 pounds on the earth then you would weigh 112.5 pounds on Neptune.See related link for more details and other planets112.5 lbs.
The problem with this question is that Neptune, and the other "gas giants," don't really have a surface per se for you to be "on", so it's kind of an arbitrary definition.Neptune's "surface gravity" is slightly higher than Earth's... about 14%, which means if you weigh 140 pounds here, on neptune you'd weigh around 160.
the same
Unless the rock causes some of the water displaced in the tank to overflow and leave the tank, just placing the rock into the water won't change the weights; it will still weigh 100 pounds.