The type of element is determined by the number of ____
a. protons in the atom
b. neutrons in the atom
c. electrons in the atom
d. electrons that have been removed from the atom
e. protons that have been removed from the atom
a
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Describe the energy of a car driving up a hill
A) entirely kinetic B) entirely potential C) both kinetic and potential D) gravitational E) elastic
If the radiant energy from the Sun comes in as a plane EM wave of intensity 1 340 W/m2, calculate the peak values of E and B. (µ0 = 4? × 10^?7 T?m/A, c = 3.00×108 m/s)
a. 330 V/m, 3.00 × 10^?4 T b. 1 010 V/m, 3.35 × 10^?6 T c. 330 V/m, 3.35 × 10^?6 T d. 1 010 V/m, 3.00 × 10^?4 T
A convex lens has focal length f. If an object is located extremely far from the lens (at infinity), the image formed is located what distance from the lens?
A) 2f B) f C) between the lens and f D) infinity E) between f and 2f
A split highway has a number of lanes for traffic. For traffic going in one direction, the radius for the inside of the curve is half the radius for the outside. One car, car A, travels on the inside while another car of equal mass, car B, travels at equal speed on the outside of the curve. Which statement about resultant forces on the cars is correct?
A. The force on A is half the force on B. B. The force on B is half the force on A. C. The force on A is four times the force on B. D. The force on B is four times the force on A. E. There is no net resultant force on either as long as they stay on the road while turning.