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Anastasy [175]
3 years ago
13

Hi, Please help me with the 2 questions, will mark and 5 stars and THANKS

Physics
2 answers:
Anit [1.1K]3 years ago
7 0

Both answers are going to be C

BlackZzzverrR [31]3 years ago
4 0

Answer: C and C

Explanation: C  since both parents contribute 50% of genetic information

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Distance from any point on a wave to an identical point on the next wave?
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A car is moving 18 m/s to the east. if it takes the car 5 seconds to reach a velocity of 19 m/s to the east, what is its acceler
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What time will the lunar eclipse happen central time?.
alexandr402 [8]
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2 years ago
Two identical small charged spheres hang in equilibrium with equal masses (0.02kg). The length of the strings is equal (0.18m) a
Yuliya22 [10]

Answer:

The value is q = 3.4 *10^{-6} \ C

Explanation:

From the question we are told that

    The mass of each sphere is m_1 = m_2  = m  =  0.020 \ kg

     The length of the string is  l = 0.18 \  m

     The angle of with the vertical is \theta  =  7^o

      The acceleration due to gravity is g = 9.8 \ m/s^2

Generally the force acting between the forces is mathematically represented as

       F  =  T cos \theta =  \frac{k*  q^2}{ r^2}

=>     T cos \theta =  \frac{k*  q^2}{ r^2}

Generally from Pythagoras theorem the radius of the circular curve created by the force is

         r = 2 L sin (\theta )

=>      r = 2* 0.180 sin (7)

=>      r = 0.043 \ m  

=>     q = tan \theta * \frac{m * g * r^2 }{k}

=>      q = tan(7)* \frac{ 0.02 * 9.8 * 0.043^2 }{9*10^{9}}

=>      q = 3.4 *10^{-6} \ C

7 0
3 years ago
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Vikki [24]
A. True
if cold air is replacing warm air it is a cold front and vice versa.
6 0
3 years ago
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