Advantages of cutting crops with sickle ? please friends give this answer in easy way

Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems

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?

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge