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iragen [17]
3 years ago
9

How long does it take an airplane to fly 5000 m if it maintains a speed of 240 meters per second?

Physics
1 answer:
kolbaska11 [484]3 years ago
8 0

Answer:

20 5/6 sec

Explanation:

To find the solution we divide 5000 by 240

However, when you see a problem, always try to simplify

5000/240=500/24=250/12=125/6

Now the division is much easier

20 5/6 sec

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Bob rides his bike with a constant speed of 10 miles per hour. How long will he take to travel a distance of 15 miles?
ICE Princess25 [194]

{\underline{\pink{\textsf{\textbf{ Answer : }}}}}

➡ 150hrs.

{\underline{\pink{\textsf{\textbf{Explanation : }}}}}

➡ Time = distance × speed

➡ Time = 15*10

➡ Time = 150hrs ans.

7 0
2 years ago
Tubby and his twin brother Libby have a combined mass of 200 kg and are zooming along in a 100 kg amusement park bumper car at 1
harkovskaia [24]

Answer: 14.1 m/s

Explanation:

We can solve this with the Conservation of Linear Momentum principle, which states the initial momentum p_{i} (before the elastic collision) must be equal to the final momentum p_{f} (after the elastic collision):

p_{i}=p_{f} (1)

Being:

p_{i}=m_{1}V_{i} + m_{2}U_{i}

p_{f}=m_{1}V_{f} + m_{2}U_{f}

Where:

m_{1}=200 kg +100 kg=300 kg is the combined mass of Tubby and Libby with the car

V_{i}=10 m/s is the velocity of Tubby and Libby with the car before the collision

m_{2}=25 kg + 100 kg=125 kg is the combined mass of Flubby with its car

U_{i}=0 m/s is the velocity of Flubby with the car before the collision

V_{f}=4.12 m/s is the velocity of Tubby and Libby with the car after the collision

U_{f} is the velocity of Flubby with the car after the collision

So, we have the following:

m_{1}V_{i} + m_{2}U_{i}=m_{1}V_{f} + m_{2}U_{f} (2)

Finding U_{f}:

U_{f}=\frac{m_{1}(V_{i}-V_{f})}{m_{2}} (3)

U_{f}=\frac{300 kg(10 m/s-4.12 m/s)}{125 kg} (4)

Finally:

U_{f}=14.1 m/s

8 0
3 years ago
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IrinaVladis [17]

1. Metallic

2. A, B

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these are all right.

7 0
3 years ago
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Viefleur [7K]

Answer:

Increasing

Explanation:

I Hope it Helps

6 0
3 years ago
True or false A person's speed around the Earth is faster at the poles than it is at the equator.
Alchen [17]

Answer:False

Explanation:The Earth rotates faster at the equator than at the poles.

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