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2 years ago

Which statement provides the best argument in favor of deforestation?

Physics

2 answers:

Salsk061 [2.6K]2 years ago

6 0

The last option would be I think

viktelen [127]2 years ago

5 0

Answer: Deforestation opens up land for mining and cattle ranching.

Explanation:

The cutting of trees on large in a forest is known as deforestation. Deforestation is done to clear up land for industrial purposes - mining, cattle ranching, to build up homes. Thus, to accommodate the needs of growing population, deforestation is done. This is the best argument in favor of deforestation because otherwise, deforestation affects climate around the globe, leads to soil erosion and causes pollution.

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A bicyclist of mass 60kg supplies 340W of power while riding into a 5 m/s head wind. The frontal area of the cyclist and bicycle

NikAS [45]

Answer:

87.1 mph

Explanation:

We are given that

Mass,m=60 kg

Power,P=340 W

Speed,v=5 m/s

Area, $A=0.344 m^2$

Drag coefficient, $C_d=0.88$

Coefficient of rolling resistance, $\mu_r=0.007$

Friction force, $f=\mu_rmg=0.007\times 60\times 9.8=4.1 N$

Where $g=9.8 m/s^2$

Let speed of cyclist=v'

Drag force, $F_d=\frac{1}{2}\rho_{air}AC_dv^2$

Density of air, $\rho_{air}=1.225 kg/m^3$

$F_d=\frac{1}{2}\times 1.225\times 0.344\times 0.88(5)^2=4.635N$

Power,P= $(F_d+f)\times v'$

$340=(4.1+4.635) v'=8.735v'$

$v'=\frac{340}{8.735}=38.9m/s$

$v'=87.1 mph$

1 m=0.00062137 miles

1 hour=3600 s

7 0

2 years ago

Meher is riding a bicycle on a slope. explain the different motions taking place during this time

gtnhenbr [62]

Answer:

Mehar cant ride down the slope

Explanation:

She does not has a bicycle

7 0

2 years ago

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zlopas [31]

3. A

4.B

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2 years ago

Chemical properties of an acid include...

Cerrena [4.2K]

and C. corrosive, increases the concentration of hydrogen ions when added to water, forms hydrogen gas when it comes in contact with a metal, and formssalt and water when added to a base.

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2 years ago

Hammer falls off a roof top and strikes the ground with a certain kinetic energy. If it fell

Galina-37 [17]

Answer:

If the starting GPE is doubled than it's KE would also double.

6 0

2 years ago