Xác định áp suất dư tại điểm A trong ống có 2 loại chất lỏng là nước và thủy
ngân( Hình 1), h= 50cm. Biết trọng
lượng riêng của nước là 9810(N/m3),
trọng lượng riêng của thủy ngân gấp 1,5
lần của nước. Áp suất khí trời là 1 at

Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?

An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point