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Sodium forms the compounds Na2S, Na3N, and NaHCO3. What are the formulas for lithium sulfide, lithium nitride, and lithium hydrogen carbonate? Consider the element magnesium. Which statement is true? (11.4)
(a) It is in Group 5A.
(b) It is a noble gas.
(c) A magnesium atom has electrons in nine shells.
(d) It is an alkaline earth metal.
A series RCL circuit operating at 60.0 Hz contains a 49-? resistor and an 5.0-µF capacitor. what is the inductance of the inductor in this circuit
Obtain the magnitude of the electrostatic force between an Oxygen molecule nucleus and a Helium nucleus if they are 1 millimeter apart
A candle flame 1.44 cm high is located 10 cm in front of a circular mirror. A real inverted image forms 5 cm from the mirror. What is the focal length of the mirror?
q1. planet zero has a mass of 5.0 acute 1023 kg and a radius of 2.0 acute 106 m. a space probe is launched
A slab of a thermal insulator with a cross-sectional area of 120 cm2 is 3.00 centimeter thick. find how much heat flows through the slab in one day
When light with a wavelength 480 nm or shorter shines on a metal surface, a current is measured. A. What is the work function of this metal B. What is the maximum kinetic energy an electron will have if violet light (380 nm) shines on the surface
hat is the magnitude of the total flux through the five non-shaded faces.
Name and define three major surface features of the Moon. What are lunar rays and how are they formed? In what year was the first crewed landing on the Moon, and how many crewed landings were there afterwards?
A rigid container of nitrogen gas (N2) at 24° C contains 440 L at a pressure of 3.5 atm. If 26.6 kJ of heat are added to the container, what will be the new temperature of the gas?
A gymnast does a one arm handstand. The humerus may beapproximated as a .32 m long cylinder with an outer radius of 1.2 x10-2, By how much is the humerus compressed
A hollow sphere of inner radius 7.2 cm and outer radius9.2 cm floats half-submerged in a liquid of density 900kg/m3. What is the mass of the sphere
What is the gravitational force on a 20-kg satellite circling the Earth (radius = 6.4 × 106 m, mass = 6.0 ×1024 kg) with a period of 5.0 h?
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