A solid bar is spun about a central axis perpendicular to the bar. What torque is required to accelerate the bar from rest to 50.0 rad/s in 21.5 s if the mass of the bar is 455 g and the length of the bar 35.0 cm?

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?