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Andrei [34K]
3 years ago
9

1. Speed is a measure of

Physics
1 answer:
antiseptic1488 [7]3 years ago
5 0

Answer:

distance traveled over time passed

Explanation:

Speed is a measure of the distance that an object travels over the time passed to travel such distance.

The speed of an object is defined as follows:

speed=\frac{distance}{time} \\s=\frac{d}{t}

where d is the distance and t is the time

thus speed is the division of the total distance that is traveled in a certain time.

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An electric iron operating at 120 volts draws 10. amperes of current. how much heat energy
faltersainse [42]
The complete question is how much heat energy is delivered by the iron in 30 seconds.
Heat is given by IVt, Where I is the current in Amperes, V is the voltage, and t is the time in seconds,
Therefore; 
Heat energy = 120 × 10 ×30
                     = 36000 joules or 36 kJ
Heat energy is measured in joules.
8 0
3 years ago
Reasons<br> why using mirrors to generate electricity is not a common practice.  
olganol [36]
A big part of the reason that mirrors are seldom if ever used to generate
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7 0
3 years ago
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An empty graduated cylinder weighs 55.26 g. When filled with 48.1 mL of an unknown liquid, it weighs 92.39 g. The density of the
katrin [286]
<h2>Density of the unknown liquid is 771.93 kg/m³</h2>

Explanation:

An empty graduated cylinder weighs 55.26 g

Weight of empty cylinder = 55.26 g = 0.05526 kg

Volume of liquid filled = 48.1 mL = 48.1 x 10⁻⁶ m³

Weight of cylinder plus liquid = 92.39 g = 0.09239 kg

Weight of liquid = 0.09239 - 0.05526

Weight of liquid = 0.03713 kg

We have

        Mass = Volume x Density

        0.03713 = 48.1 x 10⁻⁶ x Density

        Density = 771.93 kg/m³

Density of the unknown liquid is 771.93 kg/m³

5 0
3 years ago
If you put two identical cars on opposite sides of a large magnet, what happens
FrozenT [24]

Answer:

Depends on what pole it is.

Explanation:

If the poles of the cars and magnets are the same they will repel, if different, attracts.

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3 years ago
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Vibrations that move through the ground carrying the energy released during an earthquake are called
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Answer is Seismic Wave
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3 years ago
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