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lora16 [44]
3 years ago
8

Which hand is negatively charged​

Physics
1 answer:
Charra [1.4K]3 years ago
6 0

Answer:

The second hand would be negatively charged. Because there is more negative than positive.

Explanation:

I want brainliest plz

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what will be the focal lenght of a combined lens made by contact of two lenses of power +3D and -2D.​
4vir4ik [10]
  • P_1=+3D
  • P_2=-2D

\\ \bull\tt\dashrightarrow P=P_1+P_2

\\ \bull\tt\dashrightarrow P=+3D-2D=+1D

Now

\\ \bull\tt\dashrightarrow f=\dfrac{1}{P}

\\ \bull\tt\dashrightarrow f=\dfrac{1}{1}

\\ \bull\tt\dashrightarrow f=1m

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Eating a banana enables s person to perform about 4×10⁴ J of work. To what vertical height does eating a banana enable a 50kg wo
rjkz [21]

Answer:

80m

Explanation:

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light, water, carbon dioxide

Explanation:

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4 0
3 years ago
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A star has a declination of approximately -90°. in what direction is the Star located from the celestial equator?
nata0808 [166]
The start is located on theWest
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3 years ago
A stretched string is 1.91 m long and has a mass of 19.3 g . When the string is oscillated at 440 Hz , which is the frequency of
vovangra [49]

Answer:

so tension in the string is 57.199 N

Explanation:

given data

long = 1.91 m

mass = 19.3 g

oscillated = 440 Hz

wavelength = 17.1 cm = 0.171 m

to find out

tension in the string

solution

we know equation

v = √(T/u)      ...............................1

here  

v  = oscillation × wavelength = 440 × 0.171 = 75.24 m/s

and u = mass /  length  = 0.0193 / 1.91 = 0.010104712

so from equation 1

v = √(T/u)

75.24 = √(T/0.010104)

T = 57.199 N

so tension in the string is 57.199 N

5 0
4 years ago
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