Rubidium atoms are bombarded with 131 nm light what is the
a) Rubidium atoms are bombarded with 131 nm light. What is the kinetic energy of the ejected electrons?b) An unknown Alkali metal ejects electrons with a velocity of 1.24*10^6 m/s when exposed to eh same wavelength. Which element is it?
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Jacob carelessly added only 40.0 mL (instead of the recommended 50.0 mL) of 1.1 M HCl to the 50.0 mL of 1.0 M NaOH. Explain the consequence of the error.
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A 2.67-F and a 4.20-F capacitor are connected in series across a 25.0-V battery. A 8.24-F capacitor is then connected in parallel across the 2.67-F capacitor. Determine the voltage across the 8.24-F capacitor.
A ball of mass 1.7 kg hangs at the end of a string 1.2 m in length from the ceiling of a room. The height of the room is 4.0 m. What is the gravitational potential energy of the ball relative to the ceiling
Rubidium atoms are bombarded with 131 nm light. What is the kinetic energy of the ejected electrons
An amplifier has an open-circuit voltage gain of 100. With a 10-KOhm load connected, the voltage gain is found to be only 80. Find the output resistance of the amplifier.
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What concentration of naphthalene in grams per liter would be needed to give an absorbance of 1.0 at 220nm
A bix of mass 90 kg is sitting on the floor. The tension in the rope is 56.0N, Calculate the accleration on the box
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