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Drupady [299]
3 years ago
6

Using a common metric ruler, you measure the separation distance between two Al spheres from center to center to be 2.3 cm. What

is the lowest uncertainty that you can use with this measurement? a. 0.5 mm b. 1.0 mm c. not possible to tell d. 0.5 cm e. 0.1 mm
Physics
1 answer:
Reptile [31]3 years ago
8 0

Answer: 0.5 mm

Explanation: The smallest division that a common ruler has is 1 mm so any measurement taken is approximately accurate to a mm.

Uncertainty of any measuring instrument is the inaccuracy or lost of precision that occur due to its less divisions in an instrument

Uncertainty= Least Count /2

Uncertainty= 1 mm /2

Uncertainty= 0.5 mm

it means that measurement can be 2.3cm ± 0.5mm

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States of matter depend in part on the___<br> of an item.
harina [27]

Answer:

Explanation:

Matter occurs in four states: solids, liquids, gases, and plasma.

States of matter are generally described on the basis of qualities that can be seen or felt.

A solid has a definite shape and volume because the molecules that make up the solid are packed closely together and move slowly.

7 0
3 years ago
Un auto se mueve con velocidad constante de 20 m/s y la mantiene durante 20 s. Después se le aplica una aceleración constante y
pentagon [3]

Answer:

26.67 s

Explanation:

v = Velocidad final = 40 m/s

u = Velocidad inicial = 20 m/s

t_1 = Tiempo inicial = 20 s

t_2 = Tiempo empleado durante la aceleración

a = Aceleración

s = Desplazamiento del automóvil durante la aceleración = 200 m

De las ecuaciones lineales de movimiento tenemos

v^2-u^2=2as\\\Rightarrow a=\dfrac{v^2-u^2}{2s}\\\Rightarrow a=\dfrac{40^2-20^2}{2\times 200}\\\Rightarrow a=3\ \text{m/s}^2

v=u+at_2\\\Rightarrow t_2=\dfrac{v-u}{a}\\\Rightarrow t_2=\dfrac{40-20}{3}\\\Rightarrow t_2=6.67\ \text{s}

El tiempo necesario para acelerar es 6.67 s

El tiempo total necesario para toda la ruta es t=t_1+t_2=20+6.67=26.67\ \text{s}.

4 0
3 years ago
in a lab, resonance tubes are used to determine experimentally the speed of sound. using the data given, evaluate the best appro
jek_recluse [69]

The approximate speed of sound is about 761 mph or 335.28 meters/second.

<h3>What's the approximate speed of sound?</h3>

If we consider the normal atmosphere at sea level, the speed of sound is about 761 mph or 335.28 meters/second. The speed of sound is different in different mediums such as solid and liquid.

So we can conclude that the approximate speed of sound is about 761 mph or 335.28 meters/second.

Learn more about speed here: brainly.com/question/4931057

#SPJ1

3 0
2 years ago
Which of the following is an example of the strong nuclear force acting in an atom?
Pavel [41]
I believe the answer is
A. Neutrons attracting to protons
3 0
3 years ago
Read 2 more answers
Which graph of motion shows the motion of an object in equilibrium?
Dovator [93]

Answer:

The graph line that doesn't change in amounts.

Explanation:

Meaning if its a straight line horizontally across it is in equilibrium. If you don't know what I mean, search up equilibrium graph, and it will show you what I am talking about.

8 0
3 years ago
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