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2 years ago

Einstein’s theory of general relativity describes how space and time are connected. What makes this idea a theory?

Physics

2 answers:

shusha [124]2 years ago

5 0

Answer:

b. It was supported by observations and evidence

Explanation:

An idea becomes a theory when it is supported by observations and evidence. The idea is tested multiple times and if it gives similar results, then it is accepted and becomes a theory.

Einstein's general theory of relativity became theory when it was supported by various observations and evidence.

vredina [299]2 years ago

4 0

B. A hypothesis is just an idea. And can become a Theory if there is some evidence. However a Theory is not a law, but an idea with supportive evidence

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Which of these convert electric energy into kinetic energy?

Anna007 [38]

Answer:

The answer is Electric Motors .

Explanation:

As Electric motors take in electrical energy in order to operate it. So it change from electrical energy to kinetic emergy.

8 0

2 years ago

Read 2 more answers

12,3,14,10,13,8 step 3 of 3 : determine if the data set is unimodal, bimodal, multimodal, or has no mode. identify the mode(s),

strojnjashka [21]

The data set has no mode

This is the term used to describe a number in a given data that has the highest frequency.

If a pericular number have more than one frequency in a given data, the number is called the mode. Hence it is describe as unimodal.

If two different number have the same frequency that is more than one, it called bimodal.

If three or more different number have the same frequency that is more than one, it called multimodal

With the above information, we can determine whether or not the data has mode and the kind of mode. Details below

<h3>How to determine the mode</h3>

Data in increasing order: 3, 8, 10, 12, 13, 14
Mode =?

From the data given, we can see that no number has more than one frequency.

Thus, the data has no mode

Learn more about mode:

brainly.com/question/300591

#SPJ1

3 0

1 year ago

A person pushes horizontally on a heavy box and slides it across the level floor at constant velocity. The person pushes with a

gogolik [260]

Answer:

W= 638.1 J

Explanation:

As we know that

Work done is the area of the force and displacement diagram.

W=∫F.dx

W=Work

F=force

dx=Elemental displacement

From the diagram ,area A

A= 60 x 7.09 + 1/2 x 60 x 7.09

A= 638.1 J

So the work W

W= 638.1 J

3 0

3 years ago

The sun is 1.5 × 108 km from Earth. The index of refraction for water is 1.349. How much longer would it take light from the sun

tankabanditka [31]

Answer:

175s

Explanation:

time it takes sunlight to reach the earth in vacuum

C=light speed=299792458m/s

X=1.5x10^8km=1.5x10^11m

c=X/t

T1=X/c

T1=1.5X10^11/299792458=500.34s

time it takes sunlight to reach the earth in water:

First we calculate the speed of light in water taking into account the refractive index

Cw=299792458m/s/1.349=222233104.5m/s

T2=1.5x10^11/222233104.5m/s=675s

additional time it would take for the light to reach the earth

ΔT=T2-T1=675-500=175s

4 0

2 years ago

a 15kg television sits on a shelf at a height of 0.3 m how much gravitational potential energy is added to the television when i

DedPeter [7]

Answer:

<h2>103 Joules</h2>

Explanation:

In this problem we are required to find the potential energy possessed by the television

Given data

mass of television m = 15 kg

height added above the ground, h= 1-0.3 = 0.7 m

acceleration due to gravity g = 9.81 m/s^2

apply the formula for potential energy we have

P.E= m*g*h

P.E = 15*9.81*0.7 = 103 Joules

7 0

2 years ago