In their first experiment with the apparatus, the students use the double incline to measure the unknown mass of block b. they do this by fixing the value of the right incline at θ=20.0° and then adjusting the value of ϕ for the left incline such that both blocks remain at rest. they find the left incline must be tilted such that ϕ=43.0° . (you can do this experiment for yourself with the simulation! ) what is the mass of block b, mb ?

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.

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation