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2 years ago

Help thank you. will mark as brainliest if correct and no link to some unknown websites

Physics

2 answers:

Lapatulllka [165]2 years ago

5 0

The answer is 2. This is where the kinetic energy is being transferred into gravitational potential energy, and then there is complete gravitational potential energy at point 3. So the answer you are looking for is 2. I hope this helps :) please make brainliest

diamong [38]2 years ago

4 0

Position 4!! At position 4 , the roller coaster cart stores the most amount of kinetic energy. When its at position 4 , the kinetic energy of the cart will be converted to gravitational potential energy as the cart increases in height!!

I hope this answered ur qns!! ^^

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Find the kenetic energy of a car of mass 700kg racing with a velocity of 10m/s

fiasKO [112]

Answer:

35000 KJ

Explanation:

The equation for the kinetic energy is given by the formula :

$E_{k} = \frac{1}{2} mv^{2}$

$E_{k} = \frac{1}{2} (700)(10)^{2}$

$E_{k} = \frac{1}{2} (700)(100)$

$E_{k} = (350)(100)$ OR $E_{k} = \frac{1}{2} (70000)$

$E_{k} = 35000$

Units will be kilojoules since the units of mass was kilograms .

Our final answer is 35000 KJ

Hope this helped and have a good day

5 0

1 year ago

Also need help with 20 & 21 please

SSSSS [86.1K]

Number 20 is B and 21 is C

5 0

2 years ago

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When you ride a bike and make a turn, you can feel your body trying to move in the same direction the bike was going. Which of N

Alisiya [41]

Answer:

Explanation:

Newtons second law explains this the most because for every action their is an equal and opposite reaction. The reaction of you turning, causes the reaction of your whole body to turn with the bike.

3 0

2 years ago

Sam is pulling a box up to the second story of his apartment via a string. The box weighs 53.3 kg and starts from rest on the gr

castortr0y [4]

Answer:

W = 1222.4 J = 1.22 KJ

Explanation:

The work done on an object is the product of the force applied on it and the displacement it covers as a result of this force. It must be noted that the component of displacement in the direction of force should only be used. Hence, the work can be calculated as:

W = F d Cosθ

where,

W = Work Done = ?

F = Force Applied = 64 N

d = Distance Covered by Box = 19.1 m

θ = Angle between force and displacement = 0°

Therefore,

W = (64 N)(19.1 m)Cos 0°

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2 years ago

A 150-kg object takes 1.5 minutes to travel a 2,500-meter straight path. It begins the trip traveling 120 m/s and decelerates to

podryga [215]

I believe it is -1.11 m/s^2. I will let you know if its correct

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3 years ago

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