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Ymorist [56]
3 years ago
15

A testable idea or explanation that leads to a scientific investigation is called a what

Physics
2 answers:
miss Akunina [59]3 years ago
7 0
<span>A testable idea or explanation that leads to a scientific investigation is called a hypothesis.</span>
Zina [86]3 years ago
3 0
The answer is Hypothesis.
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Explain giving an example for;
Bingel [31]

\boxed{\large{\bold{\red{ANSWER~:) }}}}

  • The motion of a ball falling through the atmosphere, or a model rocket being launched up into the atmosphere are both excellent examples of Newton’s 1st law of motion.

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6 0
3 years ago
. Suppose the mass of a fully loaded module in which astronauts take off from the Moon is 1.00 × 104 kg. The thrust of its engin
Viktor [21]

Answer:

a) The module's acceleration in a vertical takeoff from the Moon will be 1.377 \frac{m}{s^2}

b) Then we can say that a thrust of 3*10^{4} N won't be able to lift off the module from the Earth because it's smaller than the module's weight (9.8 *10^{4} N).

Explanation:

a) During a vertical takeoff, the sum of the forces in the vertical axis will be equal to mass times the module's acceleration. In this this case, the thrust of the module's engines and the total module's weight are the only vertical forces. (In the Moon, the module's weight will be equal to its mass times the Moon's gravity acceleration)

T-(m*g)=m*a

Where:

T= thrust =3 *10^{4} N

m= module's mass =1 *10^{4} N

g= moon's gravity acceleration =1.623 \frac{m}{s^2}

a= module's acceleration during takeoff

Then, we can find the acceleration like this:

a=\frac{T}{m} -g=\frac{3*{10}^4 N}{1*{10}^4 kg}-1.623\frac{m}{s^2}

a=1.377 \frac{m}{s^2}

The module's acceleration in a vertical takeoff from the Moon will be 1.377 \frac{m}{s^2}

b) To takeoff, the module's engines must generate a thrust bigger than the module's weight, which will be its mass times the Earth's gravity acceleration.

weight=m*g=(1*{10}^4 kg)*(9.8 \frac{m}{s^2})=9.8 *10^{4} N

Then we can say that a thrust of 3*10^{4} N won't be able to lift off the module from the Earth because it's smaller than the module's weight (9.8 *10^{4} N).

8 0
4 years ago
A mass of 10.0 kg is in a gravitational field of 3.50 N/kg. What force acts on the mass?
mash [69]

Answer:

Force=35 N

Explanation:

Given data

mass m=10.0 kg

Gravitational field E=3.50 N/kg

To find

Force

Solution

From definition of gravitational field intensity.

E_{gravitational-field }=\frac{Force}{mass}\\  E=F/m\\F=mE\\F=(10.0 kg)*(3.50 N/kg)\\F=35N

6 0
4 years ago
Read 2 more answers
What are some of the impact of modern communication in our socio-economic life?​
givi [52]

Answer:

Modern communication has made our socio-economic life so much better and easier. It is easier now to communicate with someone far away on another continent and even do business and shop online without been physically present at the other end. One of the most important modern means of communication is the internet which has turned the world to a small global village.

6 0
3 years ago
Which of the following is not a major component of soil?
Studentka2010 [4]

<span>Hello! The pointed component, which is not found in such a large amount is the earthworm. Others, such as air, for example, are permeating all soils. Hugs!</span>
7 0
3 years ago
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