The solid shaft has a diameter of 30 mm and is simply supported at its ends. The pulleys B and D are of diameter 200 mm and pulley C is of diameter 100 mm. The forces on pulley C and pulley D are in the z and negative y direction. The forces on pulley B are at an angle of 45ofrom the negative z-axis. The shaft dimensions are in mm.

answer; /// the above statement is (true);

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.