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Komok [63]
2 years ago
7

What are the two groups of planets based on composition?

Physics
1 answer:
iris [78.8K]2 years ago
7 0
OK so yeah the mercury Venus Earth and Mars a rocky planets and Jupiter Saturn Uranus and Neptune our gaseous planets so I think that’s your answer correct me if I’m wrong:D
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On an ice rink, two skaters of equal mass grab hands and spin in a mutual circle once every 2.3 s . if we assume their arms are
sashaice [31]
We have to
 m = 65 kg
 r = 0.85 m
 t = 2.3 s
 The perimeter of the circle is given by:
 P = 2 * pi * r
 P = 2 * pi * (0.85 m)
 P = 5.34 m
 Then, by definition, the distance equals the speed by time:
 d = v * t
 v = d / t
 v = (5.34 m) / (2.3 s)
 v = 2.32 m / s
 Then, to find the radial acceleration, we must use the speed found and the radius of the circle:
 a = v ^ 2 / r
 a = (2.32 m / s) ^ 2 / (0.85 m)
 a = (5.38 m ^ 2 / s ^ 2) / (0.85 m)
 a = 6.32 m / s ^ 2
 Finally, we have that by definition the force is equal to the mass by acceleration:
 F = m * a
 F = (65 kg) * (6.32 m / s ^ 2)
 F = 410.8 N
 answer
 F = 410.8 N
6 0
3 years ago
Read 2 more answers
Which characteristic is related to kinetic energy but not potential energy?
crimeas [40]

Answer:

C

Explanation:

K.E = 1/2 mv^2

P.E = mgh

5 0
2 years ago
classify the following elements as halogens alkali metals alkaline earth metals, transition elements or inner transitional eleme
Sliva [168]
<span>Calcium - alkali earth metals is the answer</span>
6 0
3 years ago
What is charge and how do the subatomic particles cause charge?
lions [1.4K]

Answer:

In physics, a charged particle is a particle with an electric charge. ... It can also be an electron or a proton, or another elementary particle, which are all believed to have the same charge (except antimatter). Another charged particle may be an atomic nucleus devoid of electrons, such as an alpha particle. Neutron, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. It has no electric charge and a rest mass equal to 1.67493 × 10−27 kg—marginally greater than that of the proton but nearly 1,839 times greater than that of the electron.

Explanation:

6 0
3 years ago
How do I solve this
lesantik [10]

multiply grav pull by mass of astro maybe with a calculator

7 0
3 years ago
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