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Mrac
2 months ago
6

Which contributions did Galileo make to the model of the solar system? Select two options.a mathematical model for the orbits of

the planetsscientifically accurate data on planetary orbitsdata that showed that planets reflected sunlight similar to Earth’s moonthe idea that stars are other suns that do not moveobservations of the moons of Jupiter rotating around the gas giant
Physics
1 answer:
Sav [3.1K]2 months ago
7 0
Galileo's contributions to the solar system model include: Data indicating that planets reflect sunlight like the Moon, and his observations of Jupiter's moons orbiting the gas giant. With the assistance of an early telescope that he constructed, Galileo made these two significant discoveries.
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A system uses 2380 I of energy to do work as 12,900 j of heat are added to the system. The change in internal energy of the syst
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3 months ago
A physics student stands on the rim of the canyon and drops a rock. The student measures the time for it to reach the bottom to
inna [3103]

Answer:

The canyon measures 50.176 meters deep.

Explanation:

The student drops a rock from the rim of the canyon, requiring us to ascertain the depth of the canyon—name how far the ground is below the cliff.

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Time = t = 3.2 s

Initial velocity = v_{i} = 0 m/s

Gravitational acceleration = g = 9.8 m/s²

Height = h =?

According to the second equation of motion

h = v_{i}t + \frac{1}{2}gt^{2}

Given the initial velocity is zero, the right-hand side of the equation simplifies to zero

h = \frac{1}{2}gt^{2}

h = (0.5)(9.8)(3.2)²

h = 50.176 m

This calculation indicates that the rock dropped a distance of 50.176 meters to reach the canyon's base. Thus, the canyon depth is 50.176 meters.
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2 months ago
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