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The Earth's gravity pulls on the Moon, causing it to orbit. However, by Newton’s third law, it is known that the Moon exerts a force back on the Earth. Therefore, the Earth should move in response to the Moon. Thus a more accurate statement is, "The Moon and the Earth both orbit the center of mass of the Earth-Moon system. In this problem, you will calculate the location of the center of mass for the Earth-Moon system, and then you will calculate the center of mass of the Earth-Moon-Sun system. The mass of the Moon is 7.35×1022kg , the mass of the Earth is 6.00×1024kg , and the mass of the sun is 2.00×1030kg . The distance between the Moon and the Earth is 3.80×105km . The distance between the Earth and the Sun is 1.50×108km . Calculate the location x_cm of the center of mass of the Earth-Moon system. Use a coordinate system in which the center of the Earth is at x=0 and the Moon is located in the positive x direction. Express answer in kilometers to three significant figures
A 0.5970-kg ice cube at -12.40°C is placed inside a chamber of steam at 365.0°C. Later, you notice that the ice cube has completely melted into a puddle of water, calculate the final temperature of the puddle once it settled to equilibrium
A double speed trap is set up on a freeway. One police cruiser is hidden behind a billboard, and another is some distance away under a bridge. How far apart are the two cruisers
A 53.8 kg astronaut is on a space walk away from the shuttle when her tether line breaks. Determine the maximum distance she can be from the craft
To find the height of an overhead power line, you throw a ball straight upward. The ball passes the line on the way up after 0.65, What is the height of the power line
A block with mass m = 21.5 kg slides down an inclined plane of slope angle 12.1o with a constant velocity. How far up the incline will the block move before coming to rest
The RMS speed of oxygen molecules (O2) in this room is 535 m/s. What is the temperature of the air at this location
Calculate the magnitude, the direction of resultant force and the coefficient of kinetic friction.
100 volts of ac are put across a 100 turn transformer, what is the ac current drawn by the primary coil
The average lifetime of a pi meson in its own frame of reference (i.e., the proper lifetime) is 2.6 10-8 s. What is the average distance it travels before decaying
Physics: Solve a population doubling question, An easy way to find the time it takes for compound interest to double an investment is to divide 72 by the interest rate in percent.
q1. charge a and charge b are 2.5 m apart. charge a is 1.4c and charge b is 2.5c. charge c which is 2.0 c is situated
A heat engine does 376.88 J of work per cycle while exhausting 648.92 J of heat to the cold reservior. what is the cold reservior temperature in degrees Celsius
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