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Physics

Ardella Ernser ∙

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How much heat is needed to raise 8 kg of water from 4 degrees Celsius to 83 degrees Celsius

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2,641,760J...

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Waves with a frequency of 2.0 hertz are generated along a string The waves have a wavelength of 0.50 meters The speed of the waves along the string is

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v=f*wavelength v=2*.5 v=1 m/s

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A 45 kg skater is skating down a hill on roller blades at a a speed of 10 ms what is the kinetic energy of the skater

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2,250 joules

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A 120 ohm resistor a 60 ohm resistor and a 40 ohm resistor are connected in parallel to a 120 volt power source What is the effective resistance of the three resistors

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Reff = R1*R2 / (R1+R2)

if you follow this for all three, you will end up with 20 ohms.

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The speed of sound in water is 1430 ms Find the wavelength of a sound with a frequency of 286 Hz traveling through the water

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Formula is velocity=frequency X wavelength

so Wavelength = 5m

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Sound travels the slowest through which of these

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Air

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The lower range of human hearing is approximately Hz.

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Cards in this guide (7)

How much heat is needed to raise 8 kg of water from 4 degrees Celsius to 83 degrees Celsius

2,641,760J...

Waves with a frequency of 2.0 hertz are generated along a string The waves have a wavelength of 0.50 meters The speed of the waves along the string is

v=f*wavelength v=2*.5 v=1 m/s

A 45 kg skater is skating down a hill on roller blades at a a speed of 10 ms what is the kinetic energy of the skater

2,250 joules

A 120 ohm resistor a 60 ohm resistor and a 40 ohm resistor are connected in parallel to a 120 volt power source What is the effective resistance of the three resistors

Reff = R1*R2 / (R1+R2)

if you follow this for all three, you will end up with 20 ohms.

The speed of sound in water is 1430 ms Find the wavelength of a sound with a frequency of 286 Hz traveling through the water

Formula is velocity=frequency X wavelength

so Wavelength = 5m

Sound travels the slowest through which of these

Air

The lower range of human hearing is approximately Hz.

20, for a+ users

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How much heat is needed to raise 8 kg of water from 4 degrees Celsius to 83 degrees Celsius

Waves with a frequency of 2.0 hertz are generated along a string The waves have a wavelength of 0.50 meters The speed of the waves along the string is

A 45 kg skater is skating down a hill on roller blades at a a speed of 10 ms what is the kinetic energy of the skater

A 120 ohm resistor a 60 ohm resistor and a 40 ohm resistor are connected in parallel to a 120 volt power source What is the effective resistance of the three resistors

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The relationship between the angle of incidence and the angle of refraction is known as law

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