Questions by Iddober

Questions by Iddober

The half-life of uranium-238 is 4.5x10^9 years. The half-life of uranium-234 is 2.5x10^5 years. How many times greater is the half-life of uranium-238 that of uranium-234

asked Oct 14, 2020

1 answer

4 votes

94.9k views

A bridge is made with segments of concrete 91 m long (at the original temperature). If the linear expansion coeﬃcient for concrete is 1.2 × 10−5(◦C)−1, how much spacing is needed to allow for expansion

asked Jul 3, 2020

2 answers

5 votes

139k views

Eres el profesor de una clase de introducción a los artes, y hoy es el primer día de clases. Escribe y define algunos de las palabras importantes que tus estudiantes deben conocer.

asked May 11, 2020

1 answer

2 votes

44.2k views

The two most important items traded in songhay were

asked Nov 28, 2019

1 answer

4 votes

168k views

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