Asolid wooden cube is placed on a table. the cube exerts a force of 7 newtons on the table. the pressure on the table is 700 newtons/m2 given that density of the wood is 720 kg/m3 find the mass of the cube

Step-by-step explanation:

Alright, lets get started.

Cube exerts a force of 7 newton.

The pressure on the table due to cube is 700 newtons per square meter.

Formula for pressure =

Plugging the value of pressure and force, we could find the ara, this is surface area of cube which is in contact with table.

So, area =

Hence the surface area of side of cube is

Suppose the side of cube is a, then

Taking square root on both sides

a=

Hence the side of cube is 0.1 m

So. volume of cube will be =

mass=

Plugging the value of density and volume

mass= kg

Hence the mass of the cube is 0.72 kg.   :   Answer

Hope it will help :)

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation: