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3 years ago

What is the term for collecting information about the physical world via the senses or a scientific instrument?

2 answers:

6 0

The answer is A

an experiment is a scientific way of gathering data about the world around us using the scientific method and the proper tools to do so

a phenomenon is something that happens that we may not necessarily explain

a theory is something that we use to explain the world around us that we can't prove 100% but is accepted as the truth in most cases until proven otherwise

and an observation can imply you are just watching something happen and no scientific studies or uses apply

Ulleksa [173]3 years ago

4 0

Answer:D

Explanation:

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Convert 0.700 atm of pressure to its equivalent in millimeters of mercury.

inna [77]

Answer:

532 millimeters of mercury

Explanation:

In order to convert the pressure from atm to millimeters of mercury (mm Hg), we should remind the conversion factor between the two units:

1 atm = 760 mm Hg

Therefore, we can solve the problem by setting up the following proportion:

$1 atm : 760 mmHg = 0.700 atm : x$

Solving for x, we find

$x=\frac{(760 mmHg)(0.700 atm)}{1 atm}=532 mmHg$

5 0

3 years ago

Two objects of the same mass, but made of different materials, are initially at the same temperature. Equal amounts of heat are

adelina 88 [10]

Answer:

The final temperature of the two objects is the same.

Explanation:

The expression for the heat energy in terms of mass, specific heat and the change in the temperature is as follows:

$Q=mc(T_{f} -T_{i})$

Here, Q is the heat energy, m is the mass of the object, c is the specific heat and $T_{f},T_{i}$ are the final temperature and initial temperature.

According to the given question, Two objects of the same mass, but made of different materials, are initially at the same temperature. Equal amounts of heat are added to each object.

$Q=mc(T_{f}-T_{i})$ ............(1)

$Q=mc(T'_{f}-T_{i})$ .............(2)

From (1) and (2),

$mc(T_{f}-T_{i})=mc(T'_{f}-T_{i})$

$T_{f}-T_{i}=T'_{f}-T_{i}$

$T_{f}=T'_{f}$

Therefore, the final temperature of the two objects is the same.

6 0

3 years ago

Pressure is defined as

Gnesinka [82]

Pressure is defined as force per area.

It is normally further advantageous to apply pressure preferably than force to explain the importance toward liquid reaction.

4 0

3 years ago

Energy of a wave is measured in terms of the wave's ?

Tamiku [17]

Energy refers to the speed.So u use the formula speed=wavelength×frequency

4 0

3 years ago

Read 2 more answers

What does the speedometer in a moving car measure?

fgiga [73]

Answer: the speedometer indicates the speed of a vehicle.

6 0

2 years ago