All categories

3 years ago

Please help!!! I am having a hard time and your help would really help me.

Physics

1 answer:

castortr0y [4]3 years ago

5 0

Your claim is that the water source is stopped up, the evidence is that there is supposed to be water but there is none producing into the well, there would not be water flowing into the well if it was fine, but if it is stopped up, then the water wouldn't not flow

You might be interested in

1. Earth releases about 44-46 Tw of heat, in fact heat can be converted into

Aleksandr [31]

Answer:

even if it all could be used, it wouldn't be enough

Explanation:

The land area of the US is about 5.45% of the world's area, so the amount of released heat over the area of the US is on the order of 2.4 Tw. Current technology for converting geothermal energy to electricity is about 12% efficient, so the available energy might amount to 0.29 Tw if it could all be captured.

Energy consumption in the US in 2019 was on the order of 0.46 Tw. This suggests that even if <em>all</em> of the thermal energy radiated by the Earth from the US could be turned to useful forms of energy, it would meet only about 60% of the US need for energy.

8 0

3 years ago

A 1-kilogram mass is attached to a spring whose constant is 14 N/m, and the entire system is then submerged in a liquid that imp

ch4aika [34]

Answer:

Part(a): The equation of motion is $\bf{x(t) = \dfrac{7}{5}~e^{-2t} - \dfrac{2}{5}~e^{-7t}}$ .

Part(b): The equation of motion is $\bf{x(t) = -e^{-2t} + \dfrac{11}{5}~e^{-7t}}$ .

Explanation:

If ' $m$ ' be the mass of the object, ' $k$ ' be the force constant and ' $\beta$ ' be the damping constant, then the equation of motion of the particle can be written as

$\dfrac{d^{2}x}{dt^{2}} + \dfrac{\beta}{m} \dfrac{dx}{dt} + \dfrac{k}{m}x= 0.........................................(I)$

Given $m$ = 1 Kg, $k$ = 14 $N~m^{-1}$ , $\beta$ = 9. Substituting these values in equation (I),

$\dfrac{d^{2}x}{dt^{2}} + 9~\dfrac{dx}{dt} + 14~x= 0$

Taking a trial solution $x(t) = e^{mt}$ , the auxiliary equation can be written as

$m^{2} + 9m + 14 = 0............................................................(II)$

and its solutions are $m_{1} = -2~and~m_{2} = -7$ , resulting the general solution

$x(t) = C_{1}~e^{-2t} + C_{2}~e^{-7t}....................................................................(III)$

The velocity at any instant of time of the mass is

$v(t) = -2C_{1}~e^{-2t} _7~C_{2}~e^{-7t}..............................................................(IV)$

Part(a):

Given $x(t=0) = 1 m,~and~v(t=0) = 0~m~s^{-1}$ . Substituting these values in equation (III) and (IV),

$&& 1 = C_{1} + C_{2}......................(V)\\&and,& 0 = -2C_{1} - 7C_{2}.......................(VI)$

Solving equations (V) and (VI), we have

$C_{1} = \dfrac{7}{5}~and~C_{2} = \dfrac{-2}{5}$

So the equation of motion is

$x(t) = \dfrac{7}{5}~e^{-2t} - \dfrac{2}{5}~e^{-7t}$

Part(b):

Given $x(t=0) = 1 m,~and~v(t=0) = - 12~m~s^{-1}$ . Substituting these values in equation (III) and (IV),

$&& 1 = C_{1} + C_{2}......................(VII)\\&and,& -12 = -2C_{1} -7C_{2}.......................(VIII)$

Solving equations (V) and (VI), we have

$C_{1} = -1~and~C_{2} = \dfrac{11}{5}$

So the equation of motion is

$x(t) = -e^{-2t} + \dfrac{11}{5}~e^{-7t}$

3 0

4 years ago

Why does buying locally grown fruits and vegetables decrease your carbon footprint?

Jlenok [28]

C. less fuel used to deliver

7 0

3 years ago

Read 2 more answers

A 1400-kg rocket has a net propulsion force of 20 kN (kiloNewtons). Over a short time period, it uniformly speeds up from an ini

zubka84 [21]

Answer:

W = 8.92 10² kJ

Explanation:

For this exercise they give us the strength, we must calculate the distance traveled, for this we need the rocket acceleration let's use Newton's second law

F = m a

a = F / m

a = 20 103/1400

a = 14.29 m/s²

With kinematics we can find the distance traveled

$v_{f}$ ² = v₀² + 2 a x

x = ( $v_{f}$ ²-v₀²) / 2 a

x = (50² -35²) / 2 14.29

x = 1275 / 28.58

x = 44.61 m

Let's calculate the work

W = F.d

The bold is vector; as indicated by the force is in the direction of movement the scalar product is reduced to the ordinary product

W = F d

W = 20 10³ 44.61

W = 8.92 10⁵ J

W = 8.92 10² kJ

6 0

3 years ago

Is every section of the chromosome active? Why or why not?

Nat2105 [25]

Yes, every section of the chromosome is active because 1 chromosome can hold many genes that works together to make proteins

4 0

3 years ago

Read 2 more answers