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3 years ago

A pilot took 1/2 hour to complete 1/3 of his trip. How much longer will it take him to complete his trip?

Physics

1 answer:

katen-ka-za [31]3 years ago

7 0

Answer: The answer is 1.5 hours.

Step-by-step explanation: Given that the pilot took 1/2 hour to complete 1/3rd of his trip. We are to calculate the time that he will take to complete his trip.

Time taken by the pilot to complete 1/3 rd of his trip = 1/2

Therefore, time taken by the pilot to complete his trip is given by

$t=\dfrac{1}{2}\times 3=1.5.$

Thus, the pilot will take 1.5 hours to complete his trip.

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Consider a turntable to be a circular disk of moment of inertia It rotating at a constant angular velocity ωi around an axis thr

Rom4ik [11]

Answer:

Note: Angular momentum is always conserved in a collision.

The initial angular momentum of the system is

L = ( It ) ( ωi )

where It = moment of inertia of the rotating circular disc,

ωi = angular velocity of the rotating circular disc

The final angular momentum is

L = ( It + Ir ) ( ωf )

where ωf is the final angular velocity of the system.

Since the two angular momenta are equal, we see that

( It ) ( ωi ) = ( It + Ir ) ( ωf )

so making ωf the subject of the formula

ωf = [ ( It ) / ( It + Ir ) ] ωi

Explanation:

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3 years ago

A van of mass 2500kg travelling at a velocity of 12 m/s collides with a stationary car of mass 700kg. The vehicles move together

Fiesta28 [93]

Answer: 9.375m/s

Explanation: This is an inelastic collision, so the formula is mv1+mv2=(m1+m2)v-final. My work is a follows:

2500kg(12m/s) + 700kg(0m/s)=(2500kg+700kg)(v-final)

30,000kg(m/s)+0=3200kg(v-final)

30,000kg(m/s)/3200kg=9.375m/s

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3 years ago

Not affected by acids a physical or chemical?

e-lub [12.9K]

Answer:

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yuradex [85]

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3 years ago

A man travels 25 kilometers in 15 minutes. A police officer stops him and

andreev551 [17]

Answer:

yes

Explanation:

cuz 15x2=30 30x2=60 60=1 hour, and the limited is 80 km per hour

15=25

15x4=60 25x4=100

so yes

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3 years ago