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Inessa05 [86]
3 years ago
13

If a circling object is released, centrifugal force will make it travel away from the center of its original path.

Physics
1 answer:
9966 [12]3 years ago
5 0

The answer is True. The object is thrown away from the center of its original path due its inertia. Centrifugal force acts in the opposite direction as centripetal force. Centripetal force applies towards the center of the curvature in a spinning object. Centrifugal force is considered an apparent force while centripetal force is an actual force.

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If you swim with the current in a river, your speed is increased by the speed of the water; if you swim against the current, you
Blababa [14]

Answer:

11.23%

Explanation:

Lets take

Speed of man in still water =u= 1.73 m/s

Speed of flow of water = v=0.52 m/s

When swims in downward direction then speed of man = u + v

When swims in upward direction then speed of man = u - v

Lets time taken by man when he swims in downward direction is t_1 and when he swims in downward direction is t_2

Lets distance is d and it will be remain constant in both the case

d=(u+v)t_1

d=(u-v)t_2

(1.73+0.52)t_1=(1.73-0.52)t_2

t_2=1.85t_1

Time taken in still water

2 d= t x 1.73

t=1.15 x d sec

t_1=0.44d\ sec

t_2=0.82d\ sec

total time in current = 0.82 +0.44 d=1.26 d sec

So the percentage time

percentage\ time =\dfrac{1.28-1.15}{1.15}

 Percentage time =11.32%

So it will take 11.32% more time as compare to still current.

5 0
3 years ago
Through which material does the light travel the fastest?
eimsori [14]
The answer is A because it gives you a straight line which would make it easy for you go just go to end fast as a car .
6 0
3 years ago
The first step of making the scientific method involves making ----------
mel-nik [20]
Answer: Objective Observations

Explanation: The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false
7 0
3 years ago
A train travels due south at 24 m/s (relative to the ground) in a rain that is blown toward the south by the wind. The path of e
lianna [129]

Answer:

N_{Rain}=25.54 m/s

Explanation:

given,

train travels due south at = 24 m/s

rain blown toward south

path of raindrop = 70° with vertical

so,

now,

\vec{N_{PO}}=\vec{N_{PO'}}+\vec{N_{O'O}}

N_{PO}_x=N_{PO'}_x+N_{1'O}_x

N_{R}sin \theta = 0 + N_{train}

N_{R}=\dfrac{N_{train}}{sin \theta}

N_{R}=\dfrac{24}{sin70^0}

N_{Rain}=25.54 m/s

7 0
3 years ago
A 5000 kg train is traveling at a velocity of 100 m/s and hits another train. The two trains stick together and the new velocity
Nadya [2.5K]

Answer:

Explanation:

Conservation of momentum is used to solve

Unfortunately we have a missing piece of information such as the initial velocity of the unknown mass train.

If we ASSUME that the second train is at rest

5000(100) + m(0) = 5000(50) + m(50)

which means m = 5000 kg

However, I'll show you the importance of knowing that initial velocity by finding it assuming the other answers are valid

if m = 15000 kg

5000(100) + 15000(v₀) = (5000 + 15000)(50)

v₀ = 33 ⅓ m/s

if m = 10000 kg

5000(100) + 10000(v₀) = (5000 + 10000)(50)

v₀ = 25 m/s

if m = 8000 kg

5000(100) + 8000(v₀) = (5000 + 8000)(50)

v₀ = 18.75 m/s

So you can see why I had to assume an initial velocity. Any of the masses could work if the initial velocity is chosen correctly.

4 0
3 years ago
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