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Andru [333]
3 years ago
12

Hello, I need help in physics, I will pay the person who can help me. PLEASEEEE!!!!!!!

Physics
1 answer:
Artemon [7]3 years ago
3 0
Ok then what’s your question?i will help u if u want
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It’s your birthday, and to celebrate you’re going to make your first bungee jump. You stand on a bridge 100 m above a raging riv
amm1812

Answer:

X'=50.4\,m

Explanation:

Given that:

Height of jump, h=100\,m

length of elastic cord, l=30\,m

spring constant of the cord, k=40\,N.m^{-1}

mass of the body that jumps, m=80\,kg

Force on the bungee elastic cord:

F=m.g

F=80\times 9.8

Now this force F will be responsible for the elongation in the elastic cord, so:

F=k.x ............................(1)

where :

k = spring constant

x = extension in the elastic cord

using eq. (1)

80\times 9.8=40\times x

x=19.6\,m

So the cord stretches 19.6 meters more beyond its original length of 30 meters.

Hence, the remaining distance from the river surface at the bottom is:

X'=100-(30+19.6)

X'=50.4\,m

3 0
3 years ago
In the circuit diagram, what does the line segment with two circles at the end represent?
iragen [17]
I think it means a closed circut
5 0
4 years ago
Read 2 more answers
Brent made the table shown to discribe two different relationships between animals.
grigory [225]

i think it is the second one due to the preditory descritpion of relationship A


5 0
4 years ago
Which of the following is not a an example of dissipated energy?
Kaylis [27]
Which of the following is not a an example of dissipated energy?
b. kinetic

When energy is changed from one form to another, ____.

b. all of the energy can be accounted for

4 0
3 years ago
A long, thin solenoid has 450 turns per meter and a radius of 1.17 cm. The current in the solenoid is increasing at a uniform ra
sergey [27]

Answer:

\frac{di}{dt}  = 7.31 \  A/s

Explanation:

From the question we are told that  

     The  number of turns is  N =  450 \  turns

      The  radius is  r =  1.17 \ cm =  0.0117 \ m

       The  position from the center consider is  x =  3.45 cm  =  0.0345 m

       The  induced emf is  e  =  8.20 *10^{-6} \  V/m

Generally according to Gauss law

        \int\limits { e } \, dl  =  \mu_o *  N  *  \frac{di}{dt }  *  A

=>    e *  2\pi x  =  \mu_o  *  N  *  \frac{d i }{dt }  *  A

Where A is the  cross-sectional area of the solenoid which is mathematically represented as

                A =  \pi r ^2

=>      e *  2\pi x  =  \mu_o  *  N  *  \frac{d i }{dt }  *  \pi r^2

=>       \frac{di}{dt}  =  \frac{2e * x  }{\mu_o * N  * r^2}ggl;

Here  \mu_o is the permeability of free space with value

          \mu_o  =  4\pi * 10^{-7} \  N/A^2

=>     \frac{di}{dt}  =  \frac{2 *  8.20*10^{-6} *  0.0345  }{ 4\pi * 10^{-7} * 450  * (0.0117)^2}

=>      \frac{di}{dt}  = 7.31 \  A/s

6 0
4 years ago
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