The student places 0.5 kg of potato into a pan of water.
during cooking, the temperature of the potato increases from 20 °c to 100 °c
the specific heat capacity of the potato is 3400 j/kg °c
calculate the change in thermal energy of the potato.
use the equation:
change in thermal energy = mass * specific heat capacity temperature change
[3 marks]

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?

Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine