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3 years ago

Earth is the only source of gravity in the solar system

Physics

2 answers:

jeka57 [31]3 years ago

8 0

No step-by-step explanation

lyudmila [28]3 years ago

6 0

Answer: no but if u mean the only planet that has gravity on it then yes

Explanation: Consider this statement: Earth is the only source of gravity in the solar system. ... The Sun, Moon, planets, and other objects in the solar system also have a gravitational pull.

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Calculate the potential energy of a 1200 kg boulder on a cliff 45 m above the ground.

Softa [21]

Explanation:

Given mass of the object is 1200kg and it's placed at a height of 45m above the ground. As we know that potential energy is ,

$\longrightarrow PE = mgh$

where,

m is the mass of the body .
g is acceleration due to gravity.
h is the height above the ground .

Substituting the respective values ,

$\longrightarrow P.E. = 1200kg * 10m/s^2* 45m$

Multiply ,

$\longrightarrow P.E. = 540000J$

Hence the potential energy is 540000J .

I hope this helps.

4 0

2 years ago

The latent heat of vaporization for ethyl alcohol is 854 J/g. The amount of energy, rounded to the nearest whole number, needed

Lorico [155]

Answer:

4441 J

Explanation:

The amount of energy needed to change the ethyl alcohol from liquid to gas state is given by

$Q=m \lambda_v$

where

m = 5.20 g is the mass of the alcohol

$\lambda_v = 854 J/g$ is the latent heat of vaporization of the substance

Substituting the numbers into the formula, we find:

$Q=(5.20 g)(854 J/g)=4,441 J$

7 0

3 years ago

Radioactive decay of 40k atoms in an igneous rock has resulted in a radio of 25 percent 40k atoms to 75 percent 40Ar and 40Ca at

Ivanshal [37]

In order to answer this, we would need to know
the half-life of ⁴⁰K. Perhaps when you look that up,
you'll be able to answer this on your own.

6 0

3 years ago

The isotope used to remove cancer malignancy cell

cupoosta [38]

Answer:

Yttrium-90 is used for treatment of cancer, particularly non-Hodgkin's lymphoma and liver cancer, and it is being used more widely, including for arthritis treatment. Lu-177 and Y-90 are becoming the main RNT agents. Iodine-131, samarium-153, and phosphorus-32 are also used for therapy.

Explanation:

paki follow and pa thanks naman lods :)

6 0

3 years ago

Gravity on Earth is 9.8 m/s^2, and gravity on Jupiter is 23.1 m/s^2. So, if the mass of a rock is 70 kilograms, it's weight on E

Levart [38]

~686newtons on earth and
~1617 newtons on jupiter
the formula is weight = gravitational acceleration * mass of the object

3 0

3 years ago

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