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3 years ago

Is the alien theory a scientific claim? Why or why not?

2 answers:

8 0

I'm not sure what the alien Theory says or if there really is such a theory. If the theory says that aliens definitely exist and that they have visited Earth in the past then the theory is totally and completely without any kind of support. It's not scientific in any way because there is no evidence for such a claim. It may be thought to be probable but no solid evidence has ever been presented.

mina [271]3 years ago

7 0

Answer:

Sample Response: The alien theory is not a scientific claim because it is not based on valid data, there is no evidence to support it, and it does not come from a reliable source.

Explanation:

Dont worry i got yall. Mark me.

You might be interested in

What Are domains in magnetism

masya89 [10]

Groups of atoms that line up to makes something magnetic

3 0

3 years ago

What will the pressure inside the container become if the piston is moved to the 1.20 l mark while the temperature of the gas is

aliina [53]

The complete question is this: This figure (Figure 1) shows a container that is sealed at the top by a movable piston. Inside the container is an ideal gas at 1.00 atm, 20.0 ∘C, and 1.00 L. This information will apply to the first three parts of this problem.

A) What will the pressure inside the container become if the piston is moved to the 1.20 L mark while the temperature of the gas is kept constant?

Explanation:

It is given that,

$P_{1}$ = 1 atm, $V_{1}$ = 1 L

$P_{2}$ = ? , $V_{2}$ = 1.20 L

As the temperature is constant. Hence, find the value of $P_{2}$ as follows.

$P_{1} \times V_{1}$ = $P_{2} \times V_{2}$

$1 atm \times 1 L$ = $P_{2} \times 1.20 L$

$P_{2}$ = 0.833 atm

Thus, we can conclude that the pressure inside the container is 0.833 atm.

8 0

3 years ago

assuming 100% efficient energy conversion how much water stored behind a 50 centimeter high hydroelectric dam would be required

Nataly [62]

Answer:

The amount of water that will power a battery with that rating = 7.35 m³

Explanation:

The power rating for the battery is missing from the question.

Complete Question

Assuming 100% efficient energy conversion how much water stored behind a 50 centimeter high hydroelectric dam would be required to charged the battery with power rating, 12 V, 50 Ampere-minutes

Solution

Potential energy possessed by water at that height = mgH

m = mass of the water = ρV

ρ = density of water = 1000 kg/m³

V = volume of water = ?

g = acceleration due to gravity = 9.8 m/s²

H = height of water = 50 cm = 0.5 m

Potential energy = ρVgH = 1000 × V × 9.8 × 0.5 = (4900V) J

Energy of the battery = qV

q = 50 A.h = 50 × 60 = 3,000 C

V = 12 V

qV = 3,000 × 12 = 36,000 J

Energy = 36,000 J

At a 100% conversion rate, the energy of the water totally powers the battery

(4900V) = (36,000)

4900V = 36,000

V = (36,000/4900)

V = 7.35 m³

Hope this Helps!!!

4 0

4 years ago

Which of the following radioactive emissions is the most penetrating?

Lady bird [3.3K]

Gamma rays are the most penetrating radioactive emissions. The correct answer is C.

3 0

4 years ago

Read 2 more answers

An ideal air-filled parallel-plate capacitor has round plates and carries a fixed amount of equal butopposite charge on its plat

Basile [38]

Answer:

U_f = (U_o)/2)

Explanation:

The capacitance of a given capacitor is given by the formula;

C = ε_o•A/d

While energy stored in plates capacitor is given as; U_o = Q²/2C

Now,we are told that that all the dimensions of the capacitor plate is doubled. Thus, we now have;

C' = ε_o•4A/2d

Hence, C' = 2C

so capacitance is now doubled

Thus, the final energy stored between the plates of capacitor is given as;

U_f = Q²/2C'

From earlier, we saw that C' = 2C.

Thus;

U_f = Q²/2(2C)

U_f = Q²/4C

Rearranging, we have;

U_f = (1/2)(Q²/2C)

From earlier, U_o = Q²/2C

Hence,

U_f = (1/2)(U_o)

U_f = (U_o/2)

4 0

3 years ago