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2 years ago

In the formation of the solar system, nearly all of the mass of the solar nebula became

Physics

2 answers:

nata0808 [166]2 years ago

7 0

C) the sun
all the mass of the solar nebula became the Sun

maks197457 [2]2 years ago

4 0

Answer:

C. The sun

Explanation:

The solar nebula was a stellar nursery from which sun along with the planets and other bodies were born. The molecular cloud of dust and gases condensed under its own weight and collapsed to form the core. The condensed matter starts spinning and gathering more mass. The temperature and pressure rose until the beginning of the nuclear fusion reaction in the core. The sun was born. Majority of the mass of the solar nebula is the Sun. Rest of the matter accreted into planets and other smaller bodies. The Sun holds 99.8% of the matter of the solar system.

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A gas cloud surrounds a dying star against a dark background. The star heats the gases in the cloud. What type of spectrum would

8090 [49]

There are several different types of spectrums that you could expect to find from
the gas cloud, but the best option from the list would be "<span>high-frequency spectrum".</span>

3 0

2 years ago

A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon

nirvana33 [79]

It gets larger because
well let me give you an example
so today in class we looked at a lava lamp with wax inside and there was a lightbulb at the bottom.
we watched as the wax floated up because the molecules inside the wax spreads out and makes the wax less dense.
the wax floats up because (which is related to the balloon getting bigger) the wax is getting less dense and the particles get bigger which ALSO makes the wax less dense.
hope this helps and hope you can relate it to your problem! say thanks if I did help AT ALL! :)

7 0

3 years ago

Read 2 more answers

the temperature of a 2.0-kg increases by 5*c when 2,000 J of thermal energy are added to the block. What is the specific heat of

nata0808 [166]

To calculate the specific heat capacity of an object or substance, we can use the formula

c = E / m△T

Where
c as the specific heat capacity,
E as the energy applied (assume no heat loss to surroundings),
m as mass and
△T as the energy change.

Now just substitute the numbers given into the equation.

c = 2000 / 2 x 5
c = 2000/ 10
c = 200

Therefore we can conclude that the specific heat capacity of the block is 200 Jkg^-1°C^-1

3 0

2 years ago

A 0.560 kg snowball is fired from a cliff 14.2 m high with an initial velocity of 13.3 m/s, directed 26.0° above the horizontal.

enot [183]

Answer:

a) v = 21.34 m/s

b) v = 21.34 m/s

c) v = 21.34 m/s

Explanation:

Mass of the snowball, m = 0.560 kg

Height of the cliff, h = 14.2 m

Initial velocity of the ball, u = 13.3 m/s

θ = 26°

The speed of the slow ball as it reaches the ground, v = ?

The initial Kinetic energy of the snow ball, $KE_{0} = 0.5 mu^{2}$

Potential energy of the snow ball at the given height, PE = mgh

Final Kinetic energy of the ball as it reaches the ground, $KE_{f} = 0.5mv^{2}$

a) Using the principle of energy conservation,

$KE_{0} + PE = KE_{f} \\0.5mu^{2} + mgh = 0.5mv^{2}\\v^{2} =2( 0.5u^{2} + gh)\\v^{2} =u^{2} + 2gh\\v = \sqrt{u^{2} + 2gh} \\v = \sqrt{13.3^{2} + 2*9.8*14.2}\\v = 21.34 m/s$

b) The speed remains v = 21.34 m/s since it is not a function of the angle of launch

c)The principle of energy conservation used cancels out the mass of the object, therefore the speed is not dependent on mass

v = 21. 34 m/s

7 0

3 years ago

If humans are the most complex creature, does that mean they have the most number of chromosomes?

Bezzdna [24]

Yes. Either way though, humans have more chromosomes than any other species.

5 0

3 years ago

Read 2 more answers