which phrase best descirbes how scientists use the data they collect

Average speed = total distance/time

That's 2.62 m/s .

You don't want average displacement. You want average velocity.

That's (displacement)/(time).

That's zero, because displacement = 0.

Answer:

3.33 m/s

Explanation:

1600 divided by 8 comes out to 200, so supposing we're measuring the speed in terms of Meters Per Second, we would need to divide 200 by 60 to take account of the individual seconds as opposed to simply 200 meters per minute.

Answer:

the answer is D

as an electron is composed of positive charges

Answer:

D.+1°e symbol represents a type of radiation that has the same mass as an electron and a positive charge.

Explanation:

it is 100% correct!

Answer:

Truss bridge, bridge with its load-bearing structures composed of a series of wooden or metal triangles, known as trusses. Given that a triangle cannot be distorted by stress, a truss gives a stable form capable of supporting considerable external loads over a large span.

Explanation:

Load-bearing capacity of truss bridges is huge due to the structure of interconnecting triangles. The structure effectively manages both compression and tension by spreading the load from the roadway throughout its intricate structure

Answer:

in probability theory, a balance equation is an equation that describes the probability flux associated with a Markov chain in and out of states or set of states.

Explanation:

Answer:

Because the unit of area depends upon the other fundamental units.

Explanation:

Unit of Area = m^2

actual metre is the unit of length.

so metre × metre makes ?^2

the International System of Units, the fundamental units are: The meter (symbol: m), used to measure length. The kilogram (symbol: kg), used to measure mass. The second (symbol: s), used to measure time. The ampere (symbol: A), used to measure electric current.

Answer:

The amount saved in a year is $ 278.6.

Explanation:

current, I = 0.275 A

Voltage, V = 120 V

cost = $ 0.20 per kWh

The energy spent in 1 year is given by

E = V I t

E = 120 x 0.275 x 365 x 24 x 3600

E = 1.04 x 10^9 J

1 kWh = 3.6 x 10^6 J

So,

E = 288.9 kWh

So, the cost is

C = $ 0.2 x 288.9 = $ 57.78

So, the amount saved = $ 336.384 - $ 57.78 = $ 278.6  

Answer:

stagnant current

Explanation:

stagnant current because eit is

>>> A plane mirror has a reflective surface that is flat (planar). The angle of reflection equals the angle of incidence for light rays striking a planar mirror. A virtual picture is a representation of an object created at the spot where light rays appear to originate.

Hope it helps

Answer:

any smooth surface which can return back the rays of light in to the same medium is called a plane mirror.

hope it helps

Answer:

C

Explanation:

Lifting heavy weights every day

Answer:

the initial velocity of the particle is 5 cm/s

Explanation:

Given initial displacement as, s = 6t² + 5t - 5

s is measured in "cm"

t is measured in "seconds"

Velocity is the rate of change of displacement with time. Expressed as follows;

[tex]v = \frac{ds}{dt} = 12t + 5[/tex]

for initial velocity, time (t) = 0

v = 12(0) + 5

v = 5 cm/s

Therefore, the initial velocity of the particle is 5 cm/s

Answer is 29.1 mol or 525 g

Explanation:

Answer:

Explanation:

35 up 35 down cancel out.

25 forward minus 10 pulling back, so:

25-10

= 15N Right

Answer:

Gravitational POTENTIAL ENERGY is greatest at the highest point of a roller coaster.

Explanation:

hope this helps

have a great day/night :)

Answer:

the answer is B. 70 x 10-6 m

Explanation:

i'm doing the test rn

When converting from micrometers to meters, you have to divide the value by 1,000,000

= 70/1000000

= 7 ×10⁻⁵

Hence the thickness of the human hair is in meters is 7×10⁻⁵ m

Please see the link below for more information

https://brainly.com/question/8648951?referrer=searchResults

Answer:

Have you ever tried turning a glass of water upside down without spilling it? It seems impossible! Both kids and adults will be amazed by this experiment that appears to defy gravity.

With just a few simple household items, you can try this simple and fun science experiment where kids can get see the effects of air pressure in action. Printable instructions, a demonstration video, and an easy to understand explanation of how it works are included below.

Helpful Tip: Be sure to try this experiment over a sink or large container lest you accidentally make a BIG wet mess!

Answer:

Current in the circuit(I) = 0.5 ampere

Explanation:

Given:

Number of resistors = 2 (10 ohm each)

Series of resistors

EMF = 10 volt

Find:

Current in the circuit(I)

Computation:

Total resistance in series = R1 + R2

Total resistance in series = 10 + 10

Total resistance in series = 20 ohm

Current in the circuit(I) = EMF / Total resistance in series

Current in the circuit(I) = 10 / 20

Current in the circuit(I) = 0.5 ampere

Answer:

Disconnections and discrepancies 

between school-based norms and values and those of 

some pupils, especially those from 

nondominant cultures, are referred to 

as cultural discontinuity.

☆-----------------------------☆

☆Hope it helps...

☆Have a great day!!!

Answer:

Current = 3 Amperes

Explanation:

Given the following data;

Quantity of charge = 6 C

Time = 2 seconds

To find how many amps are moving through this wire;

Mathematically, the quantity of charge passing through a conductor is given by the formula;

Quantity of charge = current * time

Substituting into the formula, we have;

6 = current * 2

Current = 6/2

Current = 3 Amperes

Answer:

Explanation:

The formula for this is

[tex]n_1sin\theta_1=n_2sin\theta_2[/tex] where the index of refraction of air is 1.00. Filling in and solving for n2:

1.00sin(25) = n₂sin(13) and

1.00(.423) = n₂(.225) and

[tex]\frac{1.00(.423)}{.225}=n_2[/tex] so

[tex]n_2=1.88[/tex], choice D.

Answer:

Gamma rays

Explanation:

gamma rays have the highest energy and the shortest wavelength

Answer:

water cycle show the continuous movement of water with in the earth and atmosphere

Explanation:

Hope this helps :)

The water cycle is the process through which water evaporates from the earth's surface, rises into the atmosphere, cools and condenses into rain or snow in clouds, and then falls back to the surface as precipitation. Water that falls on land gathers in rivers and lakes, soil, and porous rock strata, and much of it goes back into the seas to evaporate. Water flows in and out of the system.

Answer:

animal and plant

Explanation:

1st is animal

mitochondria

cell membrane

nucleus

endoplasmic reticulum

golgi body

plant cell

cell wall

cell membrane

chloroplast

nucleus

vacuole

endoplasmic reticulum

mitochondria

golgi body

Speed = Distance/Time

Now,

35 = 120/t

35/120 = 1/t

120/35 = t

3.42 hours = t

Answer:

The answer to this is FALSE.

Answer:

b

Explanation:

F = ma

so, we can write it as;

= 5 = m × 20

= 5/20 = m

= 1/4 = m

= 0.25 kg = m

Answer: