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An artificial satellite circling the Earth completes each orbit in 118 minutes. (The radius of the Earth is 6.38 106 m. The mass of the Earth is 5.98 1024 kg.)
(a) Find the altitude of the satellite.
m
(b) What is the value of g at the location of this satellite?
m/s2
A 230-N child is in a swing that is attached to ropes 1.90m long. Find out the gravitational potential energy associated with child relative to her lowest position at the following times.
A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.76 mm. what is the actual diameter of the red blood cell
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Explain the distinction between reimbursement grants and entitlements. Explain how does this distinction affect the way each type of grant is accounted for?
What must be the temperature of the cold reservoir in order to increase the efficiency to 29.0%
A typical photovoltaic cell delivers 4.0×10?3W of electric energy when illuminated with 0.11W of light energy. What is the efficiency of the cell
A 37-kg girl is bouncing on a trampoline. All through a certain interval after she leaves the surface of the trampoline, her kinetic energy decreases to 215 J from 430 J. How high does she rise during this interval? Avoid air resistance.
A 0.15-kg apple falls off a tree branch that is 2.8m above the grass. The apple sinks 0.066m into the grass while stopping
Find the minimum diameter of an l = 16.3 m long steel wire that will stretch no more than 7.39 mm when a mass of 343 kg is hung on the lower end
You're carrying a 3.40 m-long, 23 poles to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip.
Two objects with masses of 2.10 kg and 6.80 kg are connected by a light string that passes over a frictionless pulley. (a) Determine the tension in the string.
What is the smallest quantum of energy that can be absorbed by the molecule in a rotational excitation? What is the smallest quantum of energy that can be absorbed in a vibration excitation? In what regions of electromagnetic spectrum do the transiti..
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