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romanna [79]
3 years ago
11

Calculate the average orbital speed of Ceres in

Physics
1 answer:
marin [14]3 years ago
8 0
] Ceres is composed of rock and ice and is estimated to comprise approximately one third of the mass of the entire asteroid belt. Ceres is the only object in the asteroid belt known to be rounded by its own gravity (though detailed analysis was required to exclude 4 Vesta). From Earth, the apparent magnitude of Ceres ranges from 6.7 to 9.3, peaking once every 15 to 16 months,[21]hence even at its brightest it is too dim to be seen with the naked eye except under extremely dark skies.
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Which change will always result in an increase in the gravitational force between two objects? increasing the masses of the obje
abruzzese [7]

By definition, we have that the gravitational force is given by:

F = \frac{G * m1 * m2}{r ^ 2}

Where,

G: gravitational constant

m1: mass of object number 1

m2: mass of object number 2

r: distance between both objects.

Therefore, for the gravitational force to increase, the following conditions must be met:

1) Increase the mass of the objects so that the numerator of the equation is greater.

2) Decrease the distance between the objects so that the denominator of the equation is smaller.

Answer:

A change that will always result in an increase in the gravitational force between two objects is:

increasing the masses of the objects and decreasing the distance between the objects

4 0
3 years ago
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What are the four ways to describe motion​
nikklg [1K]

Answer:

position, speed, direction, and acceleration.

Explanation:

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3 years ago
Were the continents once joined together as a supercontinent? Give 3 pieces of evidence to support Alfred Wegeners Theory of Con
sattari [20]
Yes! Fossils, The outlines of the continents and geological features .
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3 years ago
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How are dams made do they just freeze time?
lina2011 [118]

Answer:

Gravity dams are so named because they are held to the ground by gravity – they weigh a lot, and are typically made from concrete or stone. Engineers must de-water the river where the dam is meant to be built. This is done by diverting the river through a tunnel that runs around the intended construction zone.

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Dean is hunting in the Northwest Territories at a location where earths magnetic field is 7.0x10^-5T. He shoots by mistake at a
velikii [3]
The magnetic force acting on an object of charge q is
F=qvB \sin \theta
where
q is the charge
v is the speed of the object
B is the magnetic field intensity
\theta is the angle between the directions of v and B.

In our problem, the direction of the bullet is perpendicular to the magnetic field, so \theta=90^{\circ} and \sin \theta=1, so we can ignore it in the formula.

Therefore, we can use the data of the problem to calculate the magnetic force on the bullet:
F=qvB=(2.0 \cdot 10^{-12}C)(300 m/s)(7.0 \cdot 10^{-5} T)=4.2 \cdot 10^{-14} N
6 0
3 years ago
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