the volume of a water tank is 5m×4m×2m. If the tank is half filled with water. calculate the pressure exerted at the bottom of the tank​

10⁴ Pa

Explanation:

When the tank is half filled ,

Also we know that ,

Density = Mass/Volume

10³ kg/m³ = m/20m³

m = 2 * 10⁴ kg

So that ,

Weight = mg

F = 2*10⁴ × 10 N

F = 2 * 10⁵ N

And ,

Pressure = Force/Area

P = 2 *10⁵/ 5 * 4 Pa

P = 10⁴ Pa

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it