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8090 [49]
3 years ago
9

Please help have due very soon?thank you

Physics
1 answer:
Andru [333]3 years ago
8 0
The answer is :78 I think
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Pendulum A has a bob of mass m hung from the string of length L; pendulum B is identical to A except its bob has the length 2L.
GenaCL600 [577]

Answer:

f_{B}: f_{A} = \sqrt{\frac{2}{1}}

Explanation:

For pendulum A: Length = L and gravity = g

The frequency of pendulum A is given by

f = \frac{1}{2\pi }\sqrt{\frac{g}{L}}

Here, f is the frequency, L be the length

f_{A} = \frac{1}{2\pi }\sqrt{\frac{g}{L}}     ... (1)

For pendulum B: Length = 2L, gravity = g

The frequency of pendulum B is given by

f_{B} = \frac{1}{2\pi }\sqrt{\frac{g}{2L}}   .... (2)

Divide equation (1) by (2)

f_{B}: f_{A} = \sqrt{\frac{2}{1}}

5 0
3 years ago
What is the terminal velocity of blood? A. 8.9 feet/seconds B. 9.8 feet/seconds C. 25.1 feet/second D. 52.1 feet/seconds
goblinko [34]

Answer:

the answer is c) 25.1 feet/second

Explanation:

because the blood droplets can not increase speed past terminal velocity 100.

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3 years ago
You are in a car travelling to dinner when a light ahead suddenly turns red.
mamaluj [8]

Answer:

The car needs nearly 2.6 s

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4 years ago
Which elements are metalloids
zhannawk [14.2K]

The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium....

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The spin quantum number is represented by the symbol ______ and has the possible values ______, corresponding to the two directi
yanalaym [24]

The spin quantum number is represented by the symbol m s a nd has the possible values  +1/2.-1/  corresponding to the two directions of the electron's magnetic field.

The magnetic quantum quantity tells us what number of orbitals there are in a subshell and the feasible orientations of those orbitals. Its value is dependent on the angular momentum quantum range.

The  magnetic discipline is an area in area close to a magnet or an electric contemporary wherein a physical area is produced from a shifting electric rate that creates force on some other shifting electric rate. An instance of a magnetic field is the Earth's magnetic

All magnets have north and south poles. contrary poles are drawn to every other, whilst the identical poles repel each different. when you rub a chunk of iron alongside a magnet, the north-in search of poles of the atoms in the iron line up inside the identical route. The force generated by using the aligned atoms creates a magnetic subject.

Learn more about quantum numbers here:-brainly.com/question/25786066

#SPJ4

6 0
2 years ago
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