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labwork [276]
4 years ago
13

A 1500-kg car accelerates from 0 to 25 m/s in 7.0s with negligible friction and air resistance. What is the average power delive

red by the engine? (1 hp 746 W)
Physics
1 answer:
NARA [144]4 years ago
4 0

Answer:

90 hp

Explanation:

Power = work / time

P = ½ (1500 kg) (25 m/s)² / 7.0 s

P = 67,000 W

P = 90 hp

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Answer:

T= 5.18N

Explanation:

u = mass of chord / length of chord

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v = 7.3 / 0.83 = 8.795m/s

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3 years ago
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3 years ago
Influenced by the gravitational pull of a distant star, the velocity of an asteroid changes from from +19.3 km/s to −18.8 km/s o
muminat

As per above given data

initial velocity = 19.3 km/s

final velocity = - 18.8 km/s

now in order to find the change in velocity

\Delta v = v_f - v_i

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Part b)

Now we need to find acceleration

acceleration is given by formula

a = \frac{\Delta v}{\Delta t}

given that

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\Delta t = 2.07 years = 6.53 * 10^7 s

now the acceleration is given as

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4 0
3 years ago
The energy transferred by a force to a moving object?
Vikentia [17]

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3 0
3 years ago
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