**Answer:**

Energy materials are traditionally made with a linear approach—materials are taken, products are made, and when they expire or break, they are disposed of. The process repeats.

**Explanation:**

This may help I don't know

**Answer:**

1.25 m

**Explanation:**

For an open-air pipe, the two ends of the pipe corresponds to two antinodes of the standing wave; therefore, the wavelength of the wave is equal to twice the length of the tube:

We can rewrite the wavelength using the speed of the sound wave, v, and the frequency, f:

And substituting into the previous equation we get

And using

v = 340 m/s

f = 136 Hz

We find the length of the organ pipe:

**Answer:**

**Explanation:**

chemical kinetic

electric potenitial

Electromagnetic (light, x Ray's, microwaves, etc) kinetic

Gravitational potential

heat kinetic

Movement of mass kentic

We use the work equation:

W=Fd

replace with values

W=(15N)(5m)

W=75 Joules

Good luck.

**Answer:**

One can write F = K d^-2 where K = G M m

So dF/dd = -2 K d^-3 = -2 K / d^3 (As d increases F decreases - it is opposite to the direction of F)