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By viewing a full moon, you will find that the moon's diametersubtends an angle of about 9.5 degrees. (This means that twolines drawn from your eye to opposite edges of the moon have anangle of 0.5 degrees between them) . The distance from thesurface of the earth to the center of the moon is about 59 earthradii
a) Find the radius of the moon in terms of earthradii
b) How far from your eye would you need to hold a dimeto just barely cover the Moon? (Does the with of your thumbcover the moon if you hold your arm out straight? The moon is nextfull on Sept 18, but a partial moon is enough to judge thediameter.)
A boad initially stationary at water,fires a shell in i direction,The shell's air speed =822 m/s.The shell was in the gu8n for .16s, and the force exerted on the shell decrease linearly fromthe initial force to zero over the firing interval.
If they plan to increase their savings by 5% each year, how much must they invest in the first year given that they expect to earn 4% per year on their investment?
A train starts from rest at station A and accelerates at 0.5m/s^2 for 60s. Afterwards it travels with a constant velocity for 25min. It then decelerates at 1 m/s^2 until it is brought to rest at station B.
Determine the torque that the Titanium Alloy shaft can transmit if the allowable angle of twist is 0.375 RAD. Assume the torque is applied at the end of the shaft. The shaft is 2 meters long and has a diameter of 25 mm.
At the morning break, an industrial engineer quickly measures the worker's heart rate and finds a peak value of 110 beats/min one minute after stopping work and a value of 95 beats/min three minutes after stopping work.
A haul fleet of trucks having a heaped capacity of 15 cy. is to be loaded by a hydraulic backhoe excavator (CT=.48 min.) with a 3 1/2 cy. heaped capacity. Assume the material is a wet loam that weighs 3380 lb/cy in the bank state
Link BC is 6 mm thick, has a width w= 25 mm, and is made of a steel with a 480 MPa ultimate strength in tension. What is the safety factor used if the structure was designed to support a 16 kN load P
A thin wire ring, 3 cm in diameter, is lifted from a water surfaceat 20 C (DEGREE CENTIGRADE). Neglecting the wire weight, what isthe force required to lift the ring? is this a good way to measuresurface tension? should the wire be made of any partic..
A passenger car being driven on a flat and straight section of a highway at a speed of 65 mph reaches a curved section of the highway with a grade of 5% and a radius of 1,500ft.
A soil borrow material in its natural state in the ground has a unit weight of 118pcf. Its natural water content is 7%. What is the dry unit weight of this material?
since the management of change is a key elementnbspof a successful process improvement program anbspseries of actions
explain how mechanical strength, melting temperature , and thermal exapntion are related at the atomic level. specifically, how do they relate to each other and the bonding energy between the atoms.
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