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Orlov [11]
2 years ago
11

I need help please help

Mathematics
1 answer:
Aleks [24]2 years ago
8 0
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You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass (3,000 kg each)
Kazeer [188]

Answer:

1) Kinetic energy of the truck 1 is 600,000 joules.

Kinetic energy of the truck 2 is 1,837,500 joules.

2 a)Potential energy of truck 1 is 646,800 Joules.

b) Energy lose by the truck 1 just got converted into heat and sound energy during the collision.

Step-by-step explanation:

Mass of the truck 1 and truck 2,m = 3000 kg

Velocity of the truck 1, v_1 = = 20 m./s

Velocity of the truck 2,v_2 = 35 m./s

1. Kinetic energy of the truck 1:\frac{1}{2}mv_{1}^2=\frac{1}{2}\times 3000 kg\times (20 m/s)^=600,000 joules

Kinetic energy of the truck 2:\frac{1}{2}mv_{2}^2=\frac{1}{2}\times 3000 kg\times (35 m/s)^=1,837,500 joules

2.a) Energy loose by the truck 1:

Initial height of the truck on the hill = 22 m

At that height potential energy will be maximum:

Potential energy of truck 1 at that height = mgh=3000\times 9.8 m/s^2\times 22 m=646,800 Joules

b) Energy lose by the truck 1 just got converted into heat and sound energy during the collision.

3 0
3 years ago
Solve the equation for the variable specified. df + 10h = 3 Solve for d. A. d 3= 10h f B. d. 3- 10h f C. d = 3 - 102 D. d = f(3
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Answer:

Step-by-step explanation:

d= (3-10h)/f

6 0
2 years ago
Find the perimeter of the triangle.​
PtichkaEL [24]

Answer:

Perimeter of the Triangle

( {x}^{2}  - 5x + 13) + (2 {x}^{2}  - x + 19) + ( {x}^{2}  + 3x + 21) \\ =(1 + 2 + 1) {x}^{2}  + ( - 5 - 1 + 3)x + (13 + 19 + 21) \\ =(4 {x}^{2}  - 3x + 53) \: units

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Convert the polar expression of this complex number into its rectangular form:
Sergio [31]

Answer:MARK BRAINLLEST MARK BRAINLLEST

(−5/2, 5/2√3)

<h2 />

Step-by-step explanation:

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3 years ago
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Which of the following represents a function?
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Answer:

1 i koow

Step-by-step explanation:

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