An engineer has an odd-shaped 13.5 kg object and needs to find its rotational inertia about an axis through its center of mass. the object is supported on a wire stretched along the desired axis. the wire has a torsion constant κ = 0.618 n·m. if this torsion pendulum oscillates through 28 cycles in 58.1 s, what is the rotational inertia of the object?

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)

What is an example of static friction