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MatroZZZ [7]
3 years ago
13

Friction is a (1)______

Physics
1 answer:
spin [16.1K]3 years ago
7 0

Answer:

friction is motion heat that collect hot vibration

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True or False? There is more downward force on a faster car than on a slower car when both
kondor19780726 [428]

Answer:

false

Explanation:

bc the faster car has more inertia (i dont think im correct)

not sure but feels like it

3 0
3 years ago
a 70 kg desk sits on the floor motionless If gravity is pulling it with an acceleration of 9.8 m/s/s how much force is gravity e
adell [148]

Since force is mass*acceleration,

F = 70kg * 9.8 m/s

3 0
4 years ago
The annual production of Cl2 is about 45 millions tons per year. Assume that a typical plant is operational 90 % of the year. Th
olga nikolaevna [1]

Answer:

a) CI^-  ⇒ CI2 + 2e^-

b) 4.2 * 10^9  amperes

c) 1.4 * 10^10 watts

Explanation:

Given data:

Annual production of C12 = 45 millions tons per year

Typical plant operational percentage = 90%

Operating voltage of a cell = 3.4 v

A) Half-cell reaction for oxidation chloride to form chlorine

     CI^-  ⇒ CI2 + 2e^-

B) Calculate the total current worldwide needed to generate the global supply of CI 2

Total current = \frac{Q}{t} = \frac{1.2*10^{17} }{2.84*10^7} = 4.2 * 10^9  amperes

Q = charge , t = time

C ) Calculate electrical power need to produce global supply of chlorine using electrolysis

P = V*I

  = 3.4 * 4.2 * 10^9

  = 1.4 * 10^10 watts

7 0
3 years ago
We know that the frequency and wavelength of an oscillation are related by the velocity of the wave . In standing waves, the wav
Sidana [21]

Answer

the medium does not change the speed of the on they should change.

Explanation:

The speed of the waves is constant for a given medium, depending on the physical properties of the medium,

When a wave is strapped on a wall of a medium it does not change the properties of the medium, the wave changes direction, but since the medium does not change the speed of the on they should change.

3 0
3 years ago
What best describes the relationship between the frequency of an oscillation and the period of the oscillation?
ZanzabumX [31]

Explanation:

Let f is the frequency of an oscillation and T is the period of the oscillation. There exists an inverse relationship between the frequency and the time period of the oscillation. Mathematically, it is given by :

f=\dfrac{1}{T}

Also, f=\dfrac{\omega}{2\pi}

So,

T=\dfrac{2\pi}{\omega}

The time taken to complete one oscillation is called the period of the oscillation and the number of oscillation is called the frequency if an oscillation.

4 0
3 years ago
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