Room temperature is commonly regarded as 68.0 °f. gallium has a melting point of 29.8 °c. what is the difference between the melting point and the temperature of the surroundings (68 °f)?

The difference in the temperatures between the room temperature and the melting point of Gallium is 9.8°C.

Express the room temperature of 68°F in °C.

Find the difference between the melting point of Gallium and the room temperature.

The difference between the room temperature and the melting point of Gallium is 9.8 °C.

no

sodium is solid at rt

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.