What are intrusive rocks?
What will be an ideal response?
Inside rocks that has magma hardening while it is still underground and exposed to higher temperatures
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Galileo's discovery of Saturn's moons proved that Earth, too, could move and still keep its satellite
a. True b. False Indicate whether the statement is true or false
Looking for an Earth-size planet around a nearby star (besides the Sun) is like looking for a pinhead located
A) across the street. B) thousands of kilometers away. C) across the length of a football field. D) a few hundred kilometers away.
A string of length 2.5 m is fixed at both ends. When the string vibrates at a frequency of 85 Hz, a standing wave with five loops is formed. (a) Determine the distance between two adjacent nodes
(b) Determine the wavelength of the waves that travel on the string. (c) Determine the speed of traveling waves on this string. (d) Determine the fundamental frequency of this string.
In beta minus decay, the number of protons in the nucleus
A) is decreased by 1. B) is decreased by 2. C) is increased by 1. D) is increased by 2. E) remains unchanged.