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2 years ago

1- A student has a can of oil. which quantity can be measured using only a measuring cylinder?

1 answer:

8 0

The option that contains only apparatus that could be used to determine the volume of a small block of unknown material is a measuring cylinder and a meter rule.

<h3>What is volume?</h3>

The term volume refers to the space that a substance can occupy. Now we know that the volume could be measured by the use of a graduated cylinder such as a measuring cylinder. Hence the quantity that can be measured using only a measuring cylinder is the volume of the oil.

The option that contains only apparatus that could be used to determine the volume of a small block of unknown material is a measuring cylinder and a meter rule.

Learn more about volume:brainly.com/question/13338592

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_____ provide a picture of an electric field indicating a field’s strength.Question 15 options:CapacitorsElectric potential diff

kaheart [24]

Electric field lines are a pictorial way to represent the electric field of a charge which basically indicates the field's strength.

The electric field is strong when the lines are close together and weak when they are far away from each other.

The greater the strength of the charge, the greater will be the number of field lines.

Hence, electric field lines provide a picture of an electric field indicating a field’s strength.

The correct option is Electric field lines

4 0

1 year ago

what will be the gravitational force between two bodies if the mass of each is doubled and the distance between them is halved?

katen-ka-za [31]

Answer:

Gravitational force will be 16 times more.

Explanation:

we know;

Gravitational force (F) = (Gm1m2)/d^2

when mass of each is doubled and distance between them is halved;

F= (G2m1×2m2)/(d/2)^2

=(4Gm1m2)/(d^2/4)

=4×4(Gm1m2)/d^2

=16(Gm1m2)/d^2

=16F

3 0

3 years ago

Suatu sistem gas berada didalam ruang yang fleksibel. Pada awalnya gas berada pada kondisi P1 = 1,5 × 10 pangkat 5 N/m2, T1 = 27

enot [183]

Answer:

16.00L

Explanation:

First you calculate the number of moles in the system:

$PV=nRT\\\\n=\frac{PV}{RT}\\\\n=\frac{(1.5*10^5N/m^2)(12L)}{(0.082L.atm/mol.K)(300.15K)}=73134.16\ mol$

To find the new volume of the system you use the following formula for an isobaric procedure:

$T_2-T_1=\frac{P}{nR}(V_2-V_1)\\\\V_2=\frac{nR}{P}(T_2-T_1)+V_1\\\\V_2=\frac{(73134.16\ mol)(0.082L.atm/mol.K)}{1.5*10^5N/m^2}(400.15-300.15)K+12L\\\\V_2=16.00L$

hence, the new volume is 16.00L

6 0

4 years ago

for a moving object distance covered by it is always greater than or equal to the displacement of the object in a given time. ex

AleksandrR [38]

<h3><u>Answer</u></h3>

Distance is equal to the Total Distance covered by a body, from the initial till the final point $.$

Displacement is equal to the shortest distance between two points.

So we known that Distance can only be equal to or greater than the displacement and can never be shorter than the displacement.

This is just common sense how can anything be shorter than the shortest path itself. But it can be equal to the shortest path

☯ Distance is a scalar quantity and has only magnitude but no direction.

☯ Displacement is a vector quantity and has both magnitude and direction.

☯ Distance can only have +ve values whereas displacement can be +ve, -ve or even be zero.

6 0

3 years ago

The tallest building in the world, according to some architectural standards, is the Taipei 101 in Taiwan, at a height of 1671 f

Andrej [43]

Answer:

35.14°C

Explanation:

The equation for linear thermal expansion is $\Delta L = \alpha L_0\Delta T$ , which means that a bar of length $L_0$ with a thermal expansion coefficient $\alpha$ under a temperature variation $\Delta T$ will experiment a length variation $\Delta L$ .

We have then $\Delta L$ = 0.481 foot, $L_0$ = 1671 feet and $\alpha$ = 0.000013 per centigrade degree (this is just the linear thermal expansion of steel that you must find in a table), which means from the equation for linear thermal expansion that we have a $\Delta T =\frac{\Delta L }{\alpha L_0}$ = 22.14°. As said before, these degrees are centigrades (Celsius or Kelvin, it does not matter since it is only a variation), and the foot units cancel on the equation, showing no further conversion was needed.

Since our temperature on a cool spring day was 13.0°C, our new temperature must be $T_f=T_0+\Delta T$ = 35.14°C

3 0

4 years ago