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2 years ago

What is the speed of a horse in meters per second that runs a distance of 1.2 miles in 2.4 minutes

1 answer:

4 0

Time t=2.4 minutes=2.4×60=144 seconds
distance s=1.2 miles=1.2×1609=1930.8 meters
speed v=s/t=1930.8÷144=[tex] \frac{1930.8}{144} = \frac{160.9}{12} =[/13.408m/s ~nearly]

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Answer: $I=2 kg-m^2$

Explanation:

Given

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3 years ago

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Nuclear Fusion

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2 years ago

A 1200 kg sports car accelerates from 0 m/s to 30 m/s in 10 s. What is the average power of the engine?

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3600N

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2 years ago

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Answer:

57,42 KJ

Explanation:

By a isobaric proces, the expresion for the works in the jpg adjunt. Then:

W = Pa(Vb - Va) = Pa*Vb - Pa*Va ---(1)

By the ideal gases law: PV=RTn

Then, in (1): (remember Pa = Pb)

W = R*Tb*n - R*T*an = R*n*(Tb - Ta) --- (2)

Since we have 1 Kg air: How much is this in moles?

From bibliography: 28.96 g/mol

Then, in 1 Kg (1000 g) there are:

n = 34,53 mol

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W = (8,3144 J/K.mol)*(34,53 mol)*(500K - 300K) = 51 419,9 J ≈ 57,42 KJ

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2 years ago

A satellite of mass m completes one revolution around the earth at a constant speed s and radius r.

MAXImum [283]

Answer:

d. The magnitude of the work done by the earth on the satellite is non zero

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The work done is equal to the product of the force and the distance moved in the direction of the force, the force and the distance act perpendicular to one another, therefore no work is done in the circular motion of the movement of the earth.

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3 years ago

What is the speed of a horse in meters per second that runs a distance of 1.2 miles in 2.4 minutes​

What is the speed of a horse in meters per second that runs a distance of 1.2 miles in 2.4 minutes