A student connects a small solar panel to a 40 a resistor to make a simple circuit. The solar panel produces a voltage of 2 0. a Calculate the current in the student's circuit.

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?

You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?

The resistance of 100 w bulb is less than resistance of 40 w bulb. explain the reason.