3 years ago

When and why was the metric system invented?

1 answer:

3 0

The first practical realisation of the metric system came in 1799, during the French Revolution, when the existing system of measures, which had become impractical for trade, was replaced by a decimal system based on the kilogram and the metre.

You might be interested in

Which of the following is a renewable source of energy?

STatiana [176]

Answer:

A. boi-gas

Explanation:

This may help u

7 0

3 years ago

Read 2 more answers

A paper-filled capacitor is charged to a potential difference of V 0 = 2.5 V V0=2.5 V . The dielectric constant of paper is κ =

forsale [732]

Answer:

$V_1=9.25 V$

Explanation:

We are given that

$V_0=2.5 V$

$k=3.7$

We have to find the new potential difference of the capacitor.

When the capacitor is disconnected then the charge stored in capacitor is constant.

When we introduce material of dielectric constant k between the plates of capacitor then the capacitance of capacitor increases k times.

$C_0=\frac{Q}{V_0}$

$C'=kC=\frac{kQ}{V_1}$

$\frac{Q}{V_0}=\frac{kQ}{V_1}$

$V_0=\frac{V_1}{k}$

Using the formula

$V_0=\frac{V_1}{k}$

$V_1=V_0k=2.5\times 3.7=9.25 V$

Hence, the new potential difference $V_1=9.25 V$

5 0

3 years ago

A = F/m is an explanation of<br> in Physics

Semmy [17]

Answer:

The equation a=F/m or the acceleration is equal to the net force of an object divided by that object's mass, is an equation derived and explained by Sir Issac Newton's second law of motion. Newton's second law of motion states that the force of an object is equal to the mass times the acceleration of that object.

7 0

3 years ago

A scientist who researches the age of rock layers in the Grand Canyon studies ____ science.

Papessa [141]

Geologist is the name of a scientist who studies rocks

8 0

3 years ago

While in empty space, an astronaut throws a ball at a velocity of 12 m/s. what will the velocity of the ball be after it has tra

Ivahew [28]

As we know that in empty space we don’t have any forces to effect on our ball so ΣF=0 and based on first Newtons law it keeps going with constant velocity!

8 0

3 years ago