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Rudiy27
3 years ago
10

Using the formula for calculating Kinetic Energy (KE), what is the KE of a truck that weighs 1,200 kg and has a velocity of 6 m/

s?
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
4 0

E = \frac 1 2 m v^2= \frac 1 2 ( 1200)6^2 = 21600 \textrm{ joules}


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The formula for the surface area of a cube is SA=6s2, where is a is the length of one side of the cube if s=1/4 of a unit, what
aksik [14]
<h2>The surface area of the cube is 0.375 square units.</h2>

Step-by-step explanation:

Given : The formula for the surface area of a cube is SA=6s^2, where s is the length of one side of the cube if s=\frac{1}{4} of a unit.

To find : What is the surface area, in square units, of the cube?

Solution :

The formula for the surface area of a cube is SA=6s^2

We have given,  s=\frac{1}{4}

Substitute in the formula,

SA=6(\frac{1}{4})^2

SA=6\times \frac{1}{16}

SA= \frac{3}{8}

SA=0.375  square units.

Therefore, the surface area of the cube is 0.375 square units.

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3 years ago
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Cos to 2 decimal places is -0.90

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4 years ago
Hey Siri found that 78% of students do their homework before 8:00 PM predict how many students out of 975 do their homework befo
cestrela7 [59]
Multiply 975 by .78 and you will get 760.50.
4 0
3 years ago
shylas reserch shows that 8 empty cans make 1/4 pound of alluminum. shyla wants to know how many how many cans it takes to make
Softa [21]

Answer: 160 cans

Step-by-step explanation:

Step 1: Write out what you know and what your equation is

1/4 pound = 8 cans

5 pounds = x cans

Step 2: Find how many can you need to make 1 pound

1/4 pounds = .25 pounds

.25 x 4 = 1 pound 8 x 4 = 32

1 pound = 32 cans

Step 3: Finish Solving

1 pound = 32 cans

5 pounds = x cans

5 pounds = 32 x 5

5 pounds = 160 cans

Hope This Helps!

8 0
3 years ago
Triangle ABC has a perimeter 22cm
Lapatulllka [165]

Answer:

ΔABC is not a right- angled triangle

Step-by-step explanation:

Given AB = 8, BC = 5

Then AC = 22 - (8 + 5) = 22 - 13 = 9 cm

Using the converse of Pythagoras' identity

If the square of the longest side equals the sum of the squares of the other 2 sides then triangle is right.

AC² = 9² = 81

AB² + BC² = 8² + 5² = 64 + 25 = 89

81 ≠ 89, hence ΔABC is not right- angled


6 0
3 years ago
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