First hill
h/2
If h is 90m and vois 2 m/s. If the mass of the cart is 400 kg, fill the table below
PE = mgh
KE = 0.5my2
Total Energy (Mechanical Energy) = PE + KE
Potential Energy Kinetic Energy Total Energy
(oules)
(Joules) (Joules)
Point A
Point B
Point C

f=ma a/f/m a= 480/60 a = 8m/s/s that is quick wow

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.