Change the sentence into reported speech He said, “I met this man two days ago.”He said that he had met that man two days before​

Answer:

The magnitude of the equilibrium constant, K, indicates the extent to which a reaction will proceed: If K is a large number, it means that the equilibrium concentration of the products is large. ... If K is a small number, it means that the equilibrium concentration of the reactants is large.

Answer:

The magnitude of k^ is 1 unit

Explanation:

For measuring distance, we consider a reference distance we call it a unit distance. And we can measure any distances in terms of the unit distances.

But when we are dealing with vectors, we have to consider the direction also.

So, we define certain unit vectors along the certain reference axis.

k is the unit vector along Z-axis.

As the name suggests its magnitude is 1 unit.

Note: i^ is the unit vector along X-axis and j^ is along Y-axis.

We can represent any vector using i^, j^, and k^.

Answer:

The total decrease in his percentage is 35%. In the first test his decrease in performance is 10% and in the second test it is 25%

Step-by-step explanation:

The formula is Loss × 100%

-------

Cost price

So the the loss in the first test is 20 × 100%

-------

200

And the loss in the second test is 50 × 100%

------

200

Then you can simplify it and get the answer.

Answer:

the mass of platinum is 126.26 gram

Explanation:

given data :

density of platinum = 21.4 gm/cm³

volume of metal = 5.9cm³

we know that

density = mass / volume

mass = density × volume

mass = 21.4 × 5.9 gm

mass = 126.26gm

In addition of mass we will learn how to add the different units of mass or weight together.

Let us learn how to add different units of mass.

While adding we need to follow that the units of mass i.e., kilogram and gram are converted into grams before addition and then follow the simple addition process. We can add two or more units of mass given in kilogram and grams like ordinary numbers. Always express grams as 3-digit numbers for example 3 g = 003 g.

We will learn two different methods to solve addition using the standard unit and smaller unit of mass. Students can practice both the methods.

(i) Adding units with conversion into gram

(ii) Adding units without conversion into gram

Solution:

Method 1 (with conversion into gram):

We know, 1 kg = 1000 grams

Now kg and g are converted into grams before doing addition and then we need to follow the simple addition process.

7 kg 350 g = (7 × 1000) g + 350 g = 7000 g + 350 g = 7350 grams

2 kg 150 g = (2 × 1000) g + 150 g = 2000 g + 150 g = 2150 grams

Now sum,

           1

         7350 g

     +  2150 g

         9500 g

                  = 9 kg 500 g

Therefore, 7 kg 350 g + 2 kg 150 g = 9 kg 500 g

Method 2 (without conversion into gram):

Here kg and g are arranged in different columns and then added like ordinary numbers.

      kg       g

                          1

                   7     350

              +   2     150

                   9     500

                              = 9 kg 500 g

Therefore, sum of 7 kg 350 g and 2 kg 150 g = 9 kg 500 g

2. Add 8 kg 575 g and 4 kg 897 g

Solution:

Method 1 (with conversion into gram):

We know, 1 kg = 1000 grams

Now kg and g are converted into grams before doing addition and then we need to follow the simple addition process.

8 kg 575 g = (8 × 1000) g + 575 g = 8000 g + 575 g = 8575 grams

4 kg 897 g = (4 × 1000) g + 897 g = 4000 g + 897 g = 4897 grams

Now sum,

                 1 1 1  

                8 5 7 5  g

            +  4 8 9 7  g

              1 3 4 7 2  g

                          = 13 kg 472 g

Therefore, 8 kg 575 g + 4 kg 897 g = 13 kg 472 g

Method 2 (without conversion into gram):

Here kg and g are arranged in different columns and then added like ordinary numbers.

                kg        g

                  1     1 1

                  8     5 7 5

             +   4     8 9 7

               1 3      4 7 2

                             = 13 kg 472 g

Therefore, sum of 8 kg 575 g and 4 kg 897 g = 13 kg 472 g

3. Add 17 kg, 13 kg 940 g and 15 kg 65 g

Solution:

Here kg and g are arranged in different columns and then added like ordinary numbers (without conversion into gram).

             kg        g

             11     1

             17     000

             13     940

         +  15     065

             46     005

                          = 46 kg 005 g

Therefore, sum of 17 kg, 13 kg 940 g and 15 kg 65 g = 46 kg 005 g

4. Add 6 kg 135 g and 11 kg 954 g.

Solution:

Arrange the numbers vertically.

First, add the grams.

135 + 954 = 1089 g = 1000 g + 89 g

Write 89 under grams column and carry over 1 kg to kilograms column. Add the kilograms.

6 + 11 + 1 (carry over) = 18 kg

Addition of Weights

1Save

Write 18 kg under the kilograms column.

Hence, 6 kg 135 g + 11 kg 954 g = 18 kg 89 g.

5. Add: 45 kg 726 g, 23 kg 12 g and 7 kg 53 g.

Solution:

Let us add

Step I: Arrange the numbers vertically.

Step II: Write the weights to be added in kg and g as shown here.

Step III: First add grams from right and then add the kilograms.

Adding Weights

1Save

Thus, 45 kg 726 g + 23 kg 12 g + 7 kg 53 g = 75 kg 791 g

The above problems on addition of mass will help the students to practice the worksheet on adding the different units with conversion or without conversion.

Questions and Answers on Addition of Mass:

I. Add the given weights:

(i) 23 kg 084 g + 16 kg 214 g

(ii) 32 g 132 mg + 57 g 265 mg

(iii) 34 kg 000 g + 19 kg 075 g

(iv) 44 kg 725 g + 15 kg 200 g

(v) 70 kg 600 g + 18 kg 504 g

(vi) 41 g 800 mg + 12 g 200 mg + 33 g 082 mg

Answer:

Example: To get Milligrams from grams you multiply the grams by 1000.

You Have: 23 grams.

You want milligrams: So, milligrams = 23 Grams.

We Multiply the grams by 1000: 23g x 1000 = 23000mg.

You want milligrams: So, milligrams = 23 Grams.