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strojnjashka [21]
3 years ago
9

What is the kinetic energy, in joules, of an object that has a mass of 100 kilograms and moves with a velocity of 10 m/s?

Mathematics
1 answer:
Over [174]3 years ago
6 0

Given, an object with a mass of 100kg.

The velocity given 10m/s.

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity.

The formula to find Kinetic energy is

K.E = 1/2 × m × v² ( where m = mass and v = velocity)

= 1/2 × (100) × (10)²

= 1/2 × (100) × (100)

= 1/2 × (10000)

= 5000

We have got the required answer.

The required kinetic energy is 5000 joules.

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9 :


Given,
Perimeter = 88 units
Base = x + 4
Height = x - 6





= > Perimeter of Rectangle = 2( base + height )


= > 88 = 2{ ( x + 4 ) + ( x - 6 ) }

= > 88 / 2 = { x + 4 + x - 6 }

= > 44 = 2x - 2

= > 46 = 2x

= > 46 / 2 = x

= > 23 = x





Therefore,


Length of base = ( x + 4 ) units = ( 23 + 4 ) units = 27 units

Length of height = ( x - 6 ) units = ( 23 - 6 ) units = 17 units





10 :




Given,
First integer = x
Second integer = x + 2
Third Integer = x + 4




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= > ( x ) + ( x + 2 ) + ( x + 4 ) = 36

= > x + x + 2 + x + 4 = 36

= > 3x + 6 = 36

= > 3x = 30

= > ( 3x ) ÷ ( 3 ) = ( 30 ) ÷ ( 3 )

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\text{Hence,  }
Value of first integer = x = 10
3 0
3 years ago
How do i convert 37/4 into mixed numbers
IrinaVladis [17]
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Remainder 1.

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4 0
3 years ago
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Bogdan [553]

Answer:

9984000

Step-by-step explanation:

subtract the total by the other number (coverage)

3 0
2 years ago
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Item cost $430 before taxes and the sales tax is $38.70 find a sales tax
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Answer:

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Step-by-step explanation:

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See my other articles for quiz and assignment in my site.

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8 0
3 years ago
Write the linear equation in slope-intercept from the information given.
alexandr1967 [171]

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