A1.2 kg mass in placed on the end of a 1.4 m string. one end of the string is fixed, creating a simple pendulum. the mass is pulled to the side so that the string makes an angle of 8◦ with respect to the vertical and released from point a at t = 0. (a) what is the angular frequency of the system? (b) what is the maximum angular velocity of the pendulum? (c) what is the maximum linear speed of the mass? (d) at which point is the magnitude of the angular acceleration greatest? i. b ii. c iii. d

its c i just checked it

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.