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kari74 [83]
3 years ago
11

What would the answer be ?

Physics
1 answer:
Marianna [84]3 years ago
4 0
The second one since you’re changing the soil up by adding different fertilisers. This will be you’re independent variable. And you’re dependent variable is your result = the plant height .
Hope this helps :)
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Which accounts for an increase in the temperature of a gas that is kept a constant volume
oksian1 [2.3K]

Answer:

An increase in pressure

Explanation:

The ideal gas law states that:

pV=nRT

where

p is the gas pressure

V is the volume

n is the number of moles

R is the gas constant

T is the temperature of the gas

in the equation, n and R are constant. For a gas kept at constant volume, V is constant as well. Therefore, from the formula we see that if the temperature (T) is increase, the pressure (p) must increase as well.

7 0
3 years ago
A curent-carrying 2.0-cm long segment of wire is inside a long solenoid adius - 40 cm - 800 turns/m, current - 50 mA). The wire
klasskru [66]

Answer:

The value is  F_{max}  = 12 \muN

Explanation:

From the question we are told that

   The  length is  l = 2.0 \  cm  =  0.02 \  m

     The radius of the the solenoid is r =40 \ cm

     The number of turns per meter is  N  =  800 \  turns / m

     The current through the solenoid  is  I  =  50 \  mA  =  50*10^{-3} \  A

      The  current through the segment is  I_s  =  12 \  A

   Generally the magnetic force is mathematically  represented as

    F  = B  *  I_s l sin(\theta)

At maximum \theta =  90^o

So  

   F_{max}  = B  *  I_s l

Here B is the magnetic field is mathematically represented as  

      B  =  \mu_o  * N  * I

Here  \mu_o is the permeability of free space with value

    \mu_o  =   4\pi * 10^{-7} N/A^2

So  

      B  =    4\pi * 10^{-7}  * 800  *50*10^{-3}

=>    B  =   5.0272 *10^{-5}   \  T

So

     F_{max}  =  5.0272 *10^{-5}  * 12 *  0.02

    F_{max}  = 1.2 *10^{-5}

      F_{max}  = 12 \muN

 

4 0
3 years ago
Which of the following has the largest inertia?
Shkiper50 [21]

Option D,  a semi truck parked in a parking lot

Reason: Inertia is the state of a body which needs a force to come into the act of motion.

The more massive the object is the more is its inertia.



5 0
4 years ago
What effect does friction have on a moving object? i forgot this pls help tyy
Vsevolod [243]

Answer:it causes the moving object to slow eventually stop

Explanation:

5 0
4 years ago
Which of the following is an example of potential energy?
Papessa [141]

Answer:

A

Explanation:

potential energy is stored energy so the ball has potential energy to bounce or roll which would then have been converted to kinetic but the rest are in motion meaning energy is no longer stored but used in motion and therefore cannot be potential energy

4 0
3 years ago
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