Which scientist first postulated the existence of ions?
a. Lewis
b. Dalton
c. Arrhenius
d. Berzelius
c
You might also like to view...
Faraday's Law: A flat square coil of wire with 15 turns and an area of 0.40 m2 is placed with the plane of its area parallel to a magnetic field of 0.75 T. The coil is flipped so its plane is perpendicular to the magnetic field in a time of 0.050 s. What is the magnitude of the average induced emf in the coil?
A. 6.0 V B. 36 V C. 45 V D. 90 V
A simply supported wood beam (L 5 5 m) with rectangular cross section (b 5 200 mm, h 5 280 mm) carries uniform load q 5 6.5 kN/m includes the weight of the beam. The maximum flexural stress is approximately:
(A) 8.7 MPa
(B) 10.1 MPa
(C) 11.4 MPa
(D) 14.3 MPa
How do the size and mass of Jupiter's core compare to the size and mass of Earth?
A) It is the same size and mass. B) It is about 10 times larger in size and the same mass. C) It is about the same size but is 10 times more massive. D) It is about 10 times larger both in size and mass. E) Jupiter doesn't have a core—it is made entirely from hydrogen and helium.
A 10-A current flows for two minutes. (a) How much charge has passed through this circuit? (b) How many electrons have passed any point in the circuit?
What will be an ideal response?