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3 years ago

Vhich best describes the act of using senses or tools to gather information?

Physics

1 answer:

77julia77 [94]3 years ago

5 0

Answer:

Observation is the act of using senses or tools to gather information.

Explanation:

Observation is the process of acquiring information from the main source.
In living beings, observation requires employing the senses to gather information.
In scientific senses, or for the purpose of experiments or research, Observation is the process of using sense, or tools to gather information and record it.
Scientists use observation skills to collect data, and record it to form hypothesis and test it.

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Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 39 points and will give branlist asap!

xz_007 [3.2K]

Answer:

Graph for object that is not moving: B

Graph for object that is speeding up: D

Explanation:

A.) In order to represent that an object is not moving, you must either show that there is no velocity (0 m/s) or show a position over time graph that is a horizontal line.

Because the position is the same as time increases, the graph shows that there the object must be at rest, as there is no change in position due to velocity. (Velocity must be 0m/s)

B.) In order to represent an object is speeding up, the position time graph must either be a positive exponential function, the velocity time graph must be a positive, linear line, or the acceleration over time graph must be a positive, horizontal line.

Why is D the correct answer? Because if an object is speeding up, you know that the value of its speed (velocity) is increasing at some rate. And since speeding up refers to positive change, the function of velocity over time graph must be a positive function.

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3 years ago

8. Which element will most likely form an ionic bond with chlorine? A. O B.N C.S D.K

lorasvet [3.4K]

The answer to this is A. O

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2 years ago

What is 0.40 as a fraction?

maxonik [38]

Please remember to post in the right category next time :)

.40 as a fraction is 4/10 or 2/5
the 4 is in the tenths place, so put it over a 10 to make it a fraction.
then, simplify the fraction by dividing the numerator and denominator by 2, and you get 2/5

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3 years ago

Read 2 more answers

Consider two planets in space that gravitationally attract each other. if the masses of both planets are doubled, and the distan

amid [387]

Yhuihoifjhh F = Gm1m2 / r^2

if the masses are doubled then the force is increased by a factor of 4

if the distance is doubled the force is decreased by a factor of 1/ 2^2
the net result is no change in force

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3 years ago

Read 2 more answers

if the vessel in the sample problem accelerates fir 1.00 min, what will its speed be after that minute ?

LUCKY_DIMON [66]

Answers:

a) 154.08 m/s=554.68 km/h

b) 108 m/s=388.8 km/h

Explanation:

The complete question is written below:

In 1977 off the coast of Australia, the fastest speed by a vessel on the water was achieved. If this vessel were to undergo an average acceleration of $1.80 m/s^{2}$ , it would go from rest to its top speed in 85.6 s.

a) What was the speed of the vessel?

b) If the vessel in the sample problem accelerates for 1.00 min, what will its speed be after that minute?

Calculate the answers in both meters per second and kilometers per hour

a) The average acceleration $a_{av}$ is expressed as:

$a_{av}=\frac{\Delta V}{\Delta t}=\frac{V-V_{o}}{\Delta t}$ (1)

Where:

$a_{av}=1.80 m/s^{2}$

$\Delta V$ is the variation of velocity in a given time $\Delta t$ , which is the difference between the final velocity $V$ and the initial velocity $V_{o}=0$ (because it starts from rest).