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maxonik [38]
3 years ago
9

which of the following small bodies are the hardest to tell apart because they are made of similar materials ? A . dwarf planets

and comets. . b. asteroids and comets . . c. comets and metoroids . . d. asteroids and meteroids
Physics
2 answers:
grandymaker [24]3 years ago
8 0
Option D is right that is asteroids and meteroids.
Svetllana [295]3 years ago
6 0

Answer: d. asteroids and meteoroids

Explanation:

A comet is made of rocks and frozen gases and is found in the outskirts of the solar system. A dwarf planet is large in size and round in shape as compared to an asteroid and has rocky composition.

Asteroids and meteoroids are rocky in composition and have irregular shape and size. Majority of the asteroids are found in between the orbits of Mars and Jupiter. These are thought to form from an unformed planet. Meteoroids are debris of planets and comets. Thus, it is difficult to distinguish between the two because of the similar materials.

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Of all the planets in our solar system, Jupiter has the greatest gravitational strength. If a 1.5 kg pair of running shoes would
Andre45 [30]

Answer:

gₓ = 23.1 m/s²

Explanation:

The weight of an object is on the surface of earth is given by the following formula:

W = mg

where,

W = Weight of the object on surface of earth

m = mass of object

g = acceleration due to gravity on the surface of earth = strength of gravity on the surface of earth

Similarly, the weight of the object on Jupiter will be given as:

W_{x} = mg_{x}

where,

Wₓ = Weight of the object on surface of Jupiter = 34.665 N

m = mass of object = 1.5 kg

gₓ = acceleration due to gravity on the surface of Jupiter = strength of gravity on the surface of Jupiter = ?

Therefore,

34.65 N = (1.5 kg)g_{x}

g_{x} = \frac{34.65 N}{1.5 kg}

<u>gₓ = 23.1 m/s²</u>

7 0
3 years ago
I need help with #4 and #5?
algol [13]

A

Explanation:

just  pick a

3 0
2 years ago
You throw a bouncy rubber ball and a wet lump of clay, both of mass m, at a wall. Both strike the wall at speed v, but while the
lana [24]

Answer:

<em>The fifth option is the correct answer: mv; 2 mv</em>

Explanation:

<u>Change of Momentum</u>

Assume an object has a momentum p1 and after some interaction it now has a momentum p2, the change of momentum is

\Delta p=p_2-p_1

The momentum is computed as

p=mv

Where m is the mass of the object and v its speed. Now let's analyze the situation of both the ball and the clay.

The clay has an initial speed v and a mass m, thus its initial momentum is

p_1=mv

When it hits the wall, it sticks, thus its final speed is 0 and

p_2=0

The change of momentum is

\Delta p=0-mv=-mv

The absolute change is mv

Now for the ball, the initial condition is the same as it was for the clay, but the ball hits back at the same speed, thus its final momentum is

p_2=-mv

The change of momentum is

\Delta p=-mv-mv=-2mv

The absolute change is 2mv

The fifth option is the correct answer: mv; 2 mv

3 0
3 years ago
Which of the following best describes what we mean by the universe? (A) all the galaxies in all the superclusters(B) the sum tot
EastWind [94]

Answer:

(B) the sum total of all matter and energy

Explanation:

Universe comprises of all the matter and energy that exists in space. It contains billions of stars, planets and interstellar matter that is clouds of dust and gas. There is large amount of the empty space in between.

Universe contains stars as many as grains of sand on all beaches on the Earth. These stars are grouped into galaxies. Milky Way is one of the galaxies.  Galaxies can be grouped into clusters and super-clusters.

3 0
3 years ago
The cells lie odjacent to the sieve tubes​
nignag [31]

Answer:

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4 0
3 years ago
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