A Joule's apparatus drops a 72.4 kg hanging mass 156 cm, which causes a stirrer to spin in a sealed chamber
filled with 234 ml of water.
Assuming no energy is lost to the environment,
determine the temperature change of the water. Specific
heat of water = 4186 J/kg•°C.
Q=m-c-AT
1 ml of water equals 1 g.

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.

The particles that are found in the nucleus of an atom are