Suppose a 5.0-meter diameter telescope were constructed on the dark side of the moon. The viewing there (except for brief periods of sunlight) would be excellent. As an example, what would be the separation between two objects that could just be resolved on the planet Mars in 500 nm light? [The distance to Mars at closest approach is 50 million miles.]
9.8 km which equals 6.1 miles
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Simple Pendulum: Suppose you want to set up a simple pendulum with a period of 2.50 s. How long should it be(a) on Earth, at a location where g = 9.80 m/s2?(b) on a planet where g is 5.00 times what it is on Earth?
What will be an ideal response?
What is happening when two plates are smashing into one another?
A. Precession causes mountains to be built up; earthquakes and volcanoes may also occur. B. Subduction causes mountains to be built up; earthquakes and volcanoes may also occur. C. Rifting causes mountains to be built up; earthquakes and volcanoes may also occur. D. nothing
What is meant by ‘net charge?'
a. the total amount of positive charge on an object b. the total amount of negative charge on an object c. the total amount of neutral charge on an object d. A minus B
If the wavelength of sound is increased by a factor of 3, what happens to its speed and frequency?
1.Its speed increases by a factor of 3, and so does its frequency. 2.Its frequency increases by a factor of 3, but the speed stays the same. 3.Its frequency decreases by a factor of 3, but its speed stays the same. 4.Its speed decreases by a factor of 3, and so does its frequency.