Acylindrical capacitor is made of two thin-walled concentric cylinders. the inner cylinder has radius 8 mm , and the outer one a radius 12 mm . the common length of the cylinders is 156 m . what is the potential energy stored in this capacitor when a potential difference 7 v is applied between the inner and outer cylinder? (k =1/4∗π∗ϵ0=8.99×109n⋅m2/c2)

Awind turbine is initially spinning at a constant angular speed. as the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.173 rad/s2. after making 2870 revolutions, its angular speed is 132 rad/s. (a) what is the initial angular velocity of the turbine? (b) how much time elapses while the turbine is speeding up?

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline