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Question: A radio wave sent from the surface of the earth reflects from the surface of the moon and returns to the earth. The elapsed time between the generation of the wave and the detection of the reflected wave is 2.6444 s. Determine the distance from the surface of the earth to the surface of the moon.
You've signed up for a trip to Mars. After being cooped up in the tight space capsule for months, you are very excited to finally arrive and take a standing leap straight upward. How high will you jump
Find the electric energy density between the plates of a 225-muF parallel-plate capacitor. The potential difference between the plates is 385V
A motor is connected to a solid cylinder with a diameter of 1.2m and a mass of 51kg. Write down Newton's 2nd Law for this object
Fill two rubber balloons with air. Suspend both of them from the same point and let them hang down on strings of equal length. Make order-of-magnitude estimates of the force on each
Runner A is initially 3.0 mi west of a flagpole and is running with a constant velocity of 3.0 mi/h due east. How far are the runners from the flagpole when they meet
Two wires A and B of circular cross-section are made of the same metal and have equal lengths, What is the ratio of their cross section area
q1. what is the theoretical maximum amount of ice that the freezer might make per hour starting with water at 20 ?c?q2.
A 5.0-kg projectile is fired over level ground with a velocity of 200.0 m/s at an angle of 30.0 ° above the horizontal
100 Joules of heat energy are transferred to 20g of mercury. By how much does the temp. increase
An unstretched spring has a length of 0.30 m. while the spring is stretched to a total length of 0.60 m, it supports traveling waves moving at 4.5 m/s. How fast would waves travel on this spring if it is stretched to 0.90 m.
An antiaircraft shell is fired vertically upward with an initial velocity of 200m/s. compute the maximum height of the shell
Illustrate what is the difference between a departmental accounting system and a responsibility accounting system? Are the reports of departmental net income and the departmental contribution to overhead useful in assessing a department manager's ..
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