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3 years ago

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1. Although the sun is shining, it is a little chilly today at the beach. You look at your portable thermometer, which says it's

10°C. What is the temperature in Fahrenheit and Kelvin? Show the equations you use to make these conversions. (4 points)

1 answer:

Ganezh [65]3 years ago

3 0

Answer:

(10°C × 9/5) + 32 = 50°F

10°C + 273.15 = 283.15K

Explanation:

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Despite the gases, dust, and stars that compose the universe, it is still mostly made up of ____________________.

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Answer:

space

Explanation:

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3 years ago

A roller coaster is stopped on a track. When the engineer presses a launch button on the coaster, the coaster moves forward. Exp

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A roller coaster is stopped on a track. When the engineer presses a launch button on the coaster, the coaster moves forward. Explain this change in terms of balanced and unbalanced forces.

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Displacement vectors of 4km north, 2km south, 5km north, 5km south combine to a total displacement of

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<u>Answer</u>

The combined displacement is 2km north

<u>Explanation</u>

Since displacement is a vector quantity, we take into account the direction.

Good for us all the displacement vectors are in the same dimension, so we can make north positive and south negative or vice-versa.

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3 years ago

11. A 6.0‐m wire with a mass of 50 g, is under tension. A transverse wave, for which the frequency is 810 Hz, the wavelength is

Irina-Kira [14]

Answer:

Time will be 19 ms so option (a) is correct option

Explanation:

We have given that mass of wire m = 50 gram = 0.5 kg

Frequency f = 810 Hz

Wavelength = 0.4 m

Velocity is given by

$v=wavelength\times frequency=810\times 0.4=324m/sec$

Amplitude is given as d = 6 m

So time $t=\frac{distance}{velocity}=\frac{6}{324}=0.01851=19ms$

So option (a) is correct option

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3 years ago

Which property of a substance can be determined using a pH indicator?

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Answer:

Acidity

Explanation:

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3 years ago

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