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antoniya [11.8K]
3 years ago
15

State one advantage and disadvantage of friction

Physics
1 answer:
yuradex [85]3 years ago
5 0

Answer:

  1. Advantage: Helps us to walk without slipping.
  2. Helps machines work

Disadvantage:

  1. We slip on a wet floor.
  2. Causes the smoothness of tires and smoothness of shoes soul.

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A wave has a wavelength of 3.3 m and a speed of 5.6 m/s. What is the frequency of this wave
nikitadnepr [17]

Answer: λ (wavelength) = 3.3 m →  ΔS = 3.3 m

v (speed) = 5.6 m/s → ΔV = 5.6 m/s

T (period) → ΔT = ?

f (frequency) = ?

If:

Now: (if, ΔT = T), Using the formula of the period of a wave, find the frequency:

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Which celestial body would have the strongest gravitational pull on a satellite orbiting 100 km above its surface?
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According to the Law of Universal Gravitation, the gravitational force is directly proportional to the mass, and inversely proportional to the distance. In this problem, let's assume the celestial bodies to be restricted to the planets and the Sun. Since the distance is specified, the other factor would be the mass. Among all the celestial bodies, the Sun is the most massive. So, the Sun would cause the strongest gravitational pull to the satellite.
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4 years ago
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Darina [25.2K]

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Explanation:

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The size of the star, as stated above, can be the size of our sun and sometimes larger. The size is measured by solar radii.

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The stars brightness are always based on luminosity and magnitude.

The stars colors will vary and is based on the temperature of the surface of the star. Some stars are red in color, white in color, and some even have a bluish color.

4 0
3 years ago
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Answer:

no idea

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