A mass of 0.50 kg hangs from a thread 1.50 m long. The mass is drawn aside a horizontal distance of 0.50 m, keeping the string taut.
A pencil is clamped vertical so that when the mass is released it will
swing and break the pencil. After breaking the pencil the mass
continues to swing but only moves a horizontal distance of 0.32 m,
determine the energy required to break the pencil.

Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

True or false graphs must include scales that increase by the same amount