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Oksana_A [137]
3 years ago
9

Simplify. x + y - 0 x 2 - y 2

Mathematics
1 answer:
dusya [7]3 years ago
3 0

Answer:

-y^(2)+x+y

Step-by-step explanation:

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A box is dragged 16 m across a level floor by a 25-N force at an angle of 45° to the floor. It is then dragged by
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<u>solution</u>

W=f×d×cos theta

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=282.84J

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What is for number two help
miv72 [106K]
Step 1- turn mixed number into improper fraction.

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3 years ago
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
4 years ago
How do you factorise 12x-3?
dybincka [34]

Answer:

3(4x - 1)

Step-by-step explanation:

Given

12x - 3 ← factor out the common factor of 3 from both terms

= 3(4x - 1)

6 0
3 years ago
Read 2 more answers
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