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soldier1979 [14.2K]
3 years ago
12

How has technology influenced theories over time?

Physics
1 answer:
Contact [7]3 years ago
7 0
Better technology is helping us because we can see more stuff like the microscope we able to make assumptions based on what we saw.  
You might be interested in
How much mass of ice at 0℃ must melt when ∆Q=948000 J of heat energy is added to it?
butalik [34]
<h2>The ice melted is nearly 2.8 kg </h2>

Explanation:

The quantity of heat required to melt the ice can be found by the relation .

ΔQ = m x L

here L is used for the latent heat of fusion .

Its value is 334 J per gram for ice .

Thus m = \frac{\Delta Q}{L} = \frac{948000}{334}  = 2836 gram

or = 2.8 kg approx

6 0
3 years ago
The Moon takes about 27 days to orbit the Earth. Assuming a circular orbit, how fast is it orbiting? Express your answer in km/h
Vinvika [58]

Answer:

3727.24km/h

Explanation:

Hello!

To solve this problem we must first know what is the distance from the earth to the moon, this will be our radius.

=384400Km

Then we find the distance traveled which would be the perimeter of a circle = 2πr, finally to find the speed we divide the distance traveled by 27 days.

Finally we use conversion factor to have the speed in km / h

solving

perimeter= 2(3.14)r=2(3.14)(384400Km)=2415256.432km\\Speed=\frac{2415256.432km}{27days} *\frac{1day}{24h} =3727.24km/h

the moon is orbiting at speed of 3727.24km/h

7 0
3 years ago
Whose data did Kepler use to construct the laws of planetary motion?
salantis [7]

Answer: why did the chicken cross the road

Explanation: to get to the other side

6 0
3 years ago
I really need an answer to this today! Please help!
Alekssandra [29.7K]
For the water could use a silicon to measure that and for magnesium you can use a scale 

you would pour the  distilled water in the silicon glass thingy til you reach 25ml and then put 2.5 grams of magnesium on the scale 
 i really hope this helps
7 0
3 years ago
A sample of an unknown substance has a mass of 0.465 kg. if 3,000.0 j of heat is required to heat the substance from 50.0°c to 1
hammer [34]

The specific heat of the substance will be 0.129 J/g°C.

<h3>What is specific heat capacity?</h3>

The amount of heat required to increase a substance's temperature by one degree Celsius is known as specific heat capacity.

Similarly, heat capacity is the relationship between the amount of energy delivered to a substance and the increase in temperature that results.

The given data in the problem is;

Q is the amount of energy necessary to raise the temperature = 3,000.0 j

M is the mass=  0.465 kg.

Δt is the time it takes to raise the temperature.=50°c

s stands for specific heat capacity=?

Mathematically specific heat capacity is given by;

\rm Q= MC \triangle t \\\\ C = \frac{Q}{M\triangle t} \\\\ C = \frac{3000}{0.465 \triangle 50} \\\\ C =129.0 J/Kg^0C \\\\ C= 0.129 J/g^0C

Hence the specific heat of the substance will be 0.129 J/g°C.

To learn more about the specific heat capacity refer to the link brainly.com/question/2530523

5 0
2 years ago
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