How much ice at a temperature of -16.5 ∘c must be dropped into the water so that the final temperature of the system will be 26.0 ∘c ? take the specific heat of liquid water to be 4190 j/kg⋅k, the specific heat of ice to be 2100 j/kg⋅k, and the heat of fusion for water to be 3.34×105 j/kg . view available hint(s)

Describe the path of the electric current through a circuit?

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)