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tatuchka [14]
3 years ago
7

Someone please help.

Physics
1 answer:
Anettt [7]3 years ago
7 0

Answer:

B is the answer

Explanation:

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A star has a size of 0.1 solar radius. How many times larger is the sun than this star?
AnnyKZ [126]
<span> For this case, the first thing we are going to do is define variables:
 x: size of the radius of the star
 Y: size of the solar radio.
 Let's write an equation that models the problem:
 a star has a size of 0.1 solar radius:
</span> x = 0.1y&#10;
<span> Clearing y we have:
</span> y = x / 0.1&#10;
<span> Rewriting we have:
</span> y = x / (1/10)&#10;&#10;y = 10x<span>
 Answer:
 the sun is 10 times larger than this star</span>
4 0
4 years ago
How far does Andre have to push a box to do 430 J of work, if he applies a force of 15 Newtons
kap26 [50]

Answer:

28.7m

Explanation:

Given parameters;

Work done  = 430J

Force applied  = 15N

Unknown:

Distance moved  = ?

Solution:

Work done is the force applied to move a body through a certain distance.

     Work done  = Force x distance

So;

         430  = 15 x distance

      Distance  = 28.7m

3 0
3 years ago
In which of the following situations would there be initial energy in the system?
pshichka [43]

Answer:

A spring is compressed and held at compression by a person before releasing it

Explanation:

All the other answers are showing things that are at rest and have no energy starting nor going through them. This answer show how the energy is starting and being released.

8 0
3 years ago
Suppose a 0.04-kg car traveling at 2.00 m/s can barely break an egg. What is the min
Paha777 [63]

Answer: The correct answer is option (A).

Explanation:

Momentum of the car with 0.04 kg mass , which travelling with velocity of 2.00 m/s

P_1=mass\times velocity=m_1\times v_1=0.04 kg\times 2.00 m/s=8.00 kg m/s

Then the maximum speed of the another car in order to not to break the eggs will be same as first car:

P_1=P_2

0.08 kg m/s=m_2\times v_2=0.08 kg\times v_2

v_2=1 m/s

Speed slightly more than 1 m/s will increase the momentum of second car and the eggs will break. So, from the given options the minimum speed need by the second car will be 1.42m/s.

4 0
4 years ago
A gold bar has a density of 19.3 g/mL. If the gold bar has a mass of 6.3 grams, what is the volume?
Natali [406]

Answer:

The correct answer is "0.32 mL".

Explanation:

The given values are:

Density of gold bar,

d = 19.3 g/mL

Mass of gold bar,

m = 6.3 grams

Now,

The volume will be:

⇒  Density = \frac{Mass}{Volume}

or,

⇒  Volume=\frac{Mass}{Density}

On substituting the values, we get

⇒               =\frac{6.3 \ g}{19.3 \ g/mL}

⇒               =0.32 \ mL

7 0
3 years ago
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