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"Black Holes and the Earth from Space" Please respond to the following:
Note: Online students, please select one of the two subjects to discuss.
•From the first and second e-Activities, describe how black holes are believed to form. Assess the various tools and techniques that are used to study and observe black holes, as well as the ranges of the electromagnetic spectrum that are best suited for these studies.
how does the heliocentric theory explain the basic observation that mercury and venus are always observed to be close
A 65 g ice cube at 0°C is heated until 40 gram has become water at 100°C and 25 g has become steam at 100°C. Find how much energy was added to accomplish the transformation
A vertical cylinder 6 ft tall and 1 ft in diameter might be used to approximate a man for heat-transfer purposes, Calculate the heat lost from the cylinder
A red laser pointer with a wavelength of 635 nm is shined on a double slit producing a diffraction pattern on a screen that is1.75m behind the double slit. The central maximum of the diffraction pattern has a width of4.30cm, and the fourth bright spo..
To measure the static friction coefficient between a 4.78-kg block and a vertical wall, the setup shown in the drawing is used. what is the coefficient of static friction
a piano string is under a tension of t 778n. when struck the wave has a period of t 0.6ms and a wavelength of
Your friend recently purchased a musical instrument that generates sound waves using several strings. Determine the length of the strings of this instrument
A meter stick of weight W leans away from a wall. The 0 cm line is against the wall at the floor and it makes an angle of theta with the wall. It is kept from falling by a horizontal string connected to the 80 cm line. What is the tension (T) in the ..
A proton with an initial speed of 800000 is brought to rest by an electric field. What was the potential difference that stopped the proton
A toaster uses a Nichrome heating wire. When the toaster is turnedon at 20° C, the initial current is 1.50 A. A few secondslater, the toaster warms up and the current now has a value of 1.28A.
A proton starts from a rest position then accelerates across a potential difference of 150V between two oppositely charged parallel plates that are 22 cm apart. Determine the maximize speed of the proton?
A diffraction grating with 610 lines per mm is illuminated with light of wavelength 520nm . A very wide viewing screen is 2.1m behind the grating. How many bright fringes can be seen on the screen
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