Well the fact that I don't own a physics book and My teacher only gives us equations with variables for numbers and variables for more numbers and only gives examples of when used in real life. i would say that at least that is teaching me something thanks rake it helped me get that problem done...
1.How much torque is required to accelerate a phonograph album (75-g, 30-cm diameter 33.3 rpm) at 3-rad/sec2
2. T=I(alpha)
3. Sorry i have to idea on this one I am completely lost!
1. A 75-g phonograph album of 30-cm diameter spins at 33.3 rpm. What is its kinetic energy?
2. 1/2mv2
3. well i think that kinetic energy is 1/2mv2 so is it like that but instead of v you put in the 33.3 rpm. like 1/2(75)(33.3)2 maybe?