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jeyben [28]
3 years ago
15

A 2000 kilogram sports car accelerates at a ratr of 30 meters per second squared. The velocity of the car is v=at where a is acc

eleration in meters per second squaref and t is tome in seconds. The kinetic energy of the car is KE = 1/2 mv^2
Mathematics
2 answers:
solniwko [45]3 years ago
8 0

Answer:

KE = 900,000t²

Step-by-step explanation:

The formula for calculating the kinetic energy of a body is expressed as KE = 1/2mv² where;

m is the mass of the sport car = 2000kg

v is the velocity of the car

Since v = at

v = 30t

Substituting the given values into the KE formula;

KE  1/2 * 2000 * (30t)²

KE = 1000*900t²

KE = 900,000t² Joules where t is the time measured in seconds

mestny [16]3 years ago
4 0

Answer:

KE = 900,000t²

Step-by-step explanation:

Answer is D if you use edgenuity, answers do not mix

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In the image provided in that question the, we are told that the hypotenuse = short leg times 2

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A right prism has height 7½ and triangular bases with sides of length 5, 12, and 13 What is the: Total Surface Area of the Prism
sdas [7]

Given:

A right prism has height 7½ and triangular bases with sides of length 5, 12, and 13.

To find:

The total surface area of the prism.

Solution:

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Height of prism = 7½ = 7.5

Sides of triangular base are 5, 12, 13. These sides of Pythagorean triplets because

5^2+12^2=13^2

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So, the base of the prism is a right triangle.

Area of a triangle is

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A_1=\dfrac{1}{2}\times 5\times 12

A_1=30

The area of the base is equal to the area of the top, i.e., A_2=30 sq units.

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The curved surface area of the prism is

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CSA=30\times 7.5

CSA=225

Now, the total area of the prism is

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3 years ago
What is the volume of a sphere with a radius of 7 cm? Sphere V = 4 3 πr3 1. Substitute the radius into the formula:    V = 4 3 π
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Answer:

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v= (4/3*343)π

v=1372/3π

If we want an exact answer, multiply 1372/3 and pi

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