snow shoes.
shoes with large areas in contact with the snoow. reduces the pressure on the snow, and alows you to sink less. or to walk on the surface.
Stilettp high heels would have the opposite effect
One of the only disadvantages<span> is that the sun doesn't shine 24 hours a day. When the sun goes down or is heavily shaded, </span>solar<span> PV </span>panels<span> stop producing electricity.
Hope I helped! :D</span>
That's a simple description of how <em>ultrasound</em> works.
Answer:
E = hv
Explanation:
- The photoelectric effect is a phenomenon when the electromagnetic waves of a particular wavelength strike on the metal plate like zinc, it ejects the free electrons.
- The ejected electrons have the kinetic energy and this energy is responsible for the electric energy.
- The kinetic energy of the emitted electrons is linked with the frequency of the incident rays.
- If the rays hitting the metal plate is below the minimum required threshold value, the photoelectrons are not ejected.
- The photoelectric equation is given by
E = hν - ∅
Where, ∅ is the minimum energy required to remove an electron.
<span>F= ma so... a=F/m=
8N÷2kg=4m/s/s
THEN
vf²=vi²+2ad
vf²=0²+(2)(4)(18) = 144
vf²=√144
vf=12
THEN
KE = 1/2mv²
KE= (.5)(2)(12²)
KE = 144</span>