A frisbee is like a thin disk. The frisbee has a mass of 250 g and is being spun around an axis perpendicular to the frisbee and through the center as indicated below. Which of the following is the best estimate for the angular acceleration of the disc based on this information? Please show/explain your work.
A: 0.7 rad/s^2
B:60 rad/s^2
C:300 rad/s^2
D:3000 rad/s^2

Which statement best describes how private industry decides where to spend the money on research and development

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?