When a wire with a current is placed in a magnetic field,
a. electrical energy is transformed into mechanical energy.
b. mechanical energy is transformed into electrical energy.
c. the wire becomes a permanent magnet.
d. the current stops.?

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

Which of the following is a homogenous mixture? o a. a toy box filled with toys o b. blood o c. trail mix o d. spaghetti and meatballs submit

Which best represents the law of conservation of mass ?