All categories

3 years ago

Which option identifies a factor that would make the reasoning for a claim scientifically invalid?

Physics

1 answer:

lora16 [44]3 years ago

7 0

Answer:

C)a lack of supporting empirical evidence

Explanation:

A scientific reasoning can be rendered invalid if empirical evidences are lacking. Empirical evidences are usually a product of observations or experiments.

When these are lacking or cannot be gathered, scientific observations or sometimes reasoning can be rendered as invalid because there is no ground to prove them.

You might be interested in

a light ray traveling in air enters a second medium and its speed slows to 1.71 × 10^8 meters per second. what is the absolute i

givi [52]

The absolute refractive index is equal to the speed of light of the wave in air divided by the speed of light in the second medium. This means that it is equal to 3 x10^8 / 1.71 x10^8. This means the answer is 1.75

8 0

3 years ago

Read 2 more answers

An astronaut is drifting away from his spaceship. how can he return, using an aerosol spray?

beks73 [17]

The astronaut should shoot the aerosol spray in the opposite direction of where the astronaut is going to return back to the spaceship. This is in accordance to Newton’s Thrid Law, every action has an equal and opposite reaction.

Hope this helps you out!

6 0

3 years ago

Water is to be boiled at sea level (1 atm pressure) in a 30-cm-diameter stainless steel pan placed on top of a 18-kW electric bu

Tamiku [17]

Answer:

Explanation:

18 kW = 18000 J /s

60% of 18kW = 10800 J/s

Latent heat of evaporation of water

= 2260 x 10³ J / kg

kg of water being evaporated per second

= 10800 / 2260 x 10³ kg /s

= 4.7787 x 10⁻³ kg / s

= 4.78 gm / s .

3 0

3 years ago

It is proposed that future space stations create an artificial gravity by rotating. Suppose a space station is constructed as a

Archy [21]

To solve this problem, apply the concepts related to the centripetal acceleration as the equivalent of gravity, and the kinematic equations of linear motion that will relate the speed, the distance traveled and the period of the body to meet the needs given in the problem. Centripetal acceleration is defined as,

$a_c = \frac{v^2}{r}$

Here,

v = Tangential Velocity

r = Radius

If we rearrange the equation to get the velocity we have,

$v = \sqrt{a_c r}$

But at this case the centripetal acceleration must be equal to the gravitational at the Earth, then

$v = \sqrt{gr}$

$v = \sqrt{(9.8)(\frac{1000}{2})}$

$v = 70m/s$

The perimeter of the cylinder would be given by,

$\phi = 2\pi r$

$\phi = 2\pi (500m)$

$\phi = 3141.6m$

Therefore now related by kinematic equations of linear motion the speed with the distance traveled and the time we will have to

$v = \frac{d}{t} \rightarrow \text{ But here } d = \phi$

$v = \frac{\phi}{t} \rightarrow t = \frac{\phi}{t}$

$t = \frac{3141.6}{70m/s}$

$t = 44.9s$

Therefore the period will be 44.9s

6 0

3 years ago

Read 2 more answers

What is gravity? Is gravity a force?

vodka [1.7K]

Answer:

Gravity is a force which tries to pull two objects toward each other. Anything which has mass also has a gravitational pull.

Explanation:

The more massive an object is, the stronger its gravitational pull is. Earth's gravity is what keeps you on the ground and what causes objects to fall.

4 0

4 years ago

Read 2 more answers