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Korolek [52]
3 years ago
14

How are electric fuses rated

Physics
1 answer:
vitfil [10]3 years ago
6 0

Answer:

The fuse rating can be calculated by dividing the power used by the appliance by the voltage going into the appliance.

Explanation:

(AMPS)=P(watts)÷V(Voltage)

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a 1600 kg car on flat ground is moving 6.25 m/s. its engine creates 1150 N forward force as the car moves 45.8 m. what is it fin
Sveta_85 [38]

Answer:

83,900 J

Explanation:

First, find the acceleration:

F = ma

1150 N = (1600 kg) a

a = 0.719 m/s²

Now find the final velocity.

Given:

Δx = 45.8 m

v₀ = 6.25 m/s

a = 0.719 m/s²

Find: v

v² = v₀² + 2aΔx

v² = (6.25 m/s)² + 2 (0.719 m/s²) (45.8 m)

v = 10.2 m/s

Now find the final KE:

KE = ½ mv²

KE = ½ (1600 kg) (10.2 m/s)²

KE = 83,920 J

Rounded to three significant figures, the final kinetic energy is 83,900 J.

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4 years ago
Identify and describe three specific mnemonic techniques you learned about and explain how each of these mnemonics devices may b
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3 years ago
An object has a force of 88N to the right Wth an acceleration of 8 m/s2 to the right. What is the mass of the object? (mass has
weeeeeb [17]

Answer:

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Explanation:

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3 years ago
If an 18-wheeler truck travels 280,000m to transport its cargo in 8 hrs. (28,800s). What was it’s average velocity?
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Answer:

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Explanation:

5 0
3 years ago
A+slab+of+a+thermal+insulator is 100cm2 in crss-section and 2cm thick. If it has a thermal conductivity of 0.1J/s/m/(C°) and a t
WARRIOR [948]

Answer:

The heat flow through the slab in a day is 432,000 J

Explanation:

Q = kA∆T/t

Q is rate of heat flow

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∆T is temperature difference = 100 °C

t is thickness = 2 cm = 2/100 = 0.02 m

Q = 0.1×0.01×100/0.02 = 5 J/s

In a day, there are 24×60×60 = 86,400 s

Heat flow in a day = 5 J/s × 86,400 s = 432,000 J

7 0
3 years ago
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