A glass rod rubbed with a tissue paper would strip away electrons from the atoms in glass rod. This would acquire positive charge on the glass rod. What charge is generated at the leaves in electroscope (initially neutral) when this charged glass rod is brought towards the metal ball

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?

How would a small bar magnet be oriented when placed at position x?

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?