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Q. A 80 g, 37 cm long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 15 g ball of clay traveling horizontally at 2.7 hits and sticks to the very bottom tip of the rod.
To what maximum angle, measured from vertical, does the rod (with the attached ball of clay) rotate?
Q. An object is 29 cm away from a concave mirror's surface along the principal axis. If the mirror's focal length is 9.50 cm, how far away is the corresponding image?
Laser light at 635 falls on a double-slit apparatus with slit separation 6.9 .Find out the separation between the third and fourth bright fringes, as seen on a screen 1.4 from the slits.
Two people stand 5.20 m apart and 4.00 m away from a large plane mirror in a dark room. At what angle of incidence should one of them shine a flashlight on the mirror so that the reflected beam straight strikes the other person.
An airplane starting from airport A flies 304 km east, then 364 km at 35.5° west of north, and then 150 km north to arrive at last at airport B.
If you drop an aspirin and it takes 0.18 sec to hit the table, how high above the table was the aspirin when it released?
An engine does 20000 J of work and rejects 6120 J of heat into a cold reservoir whose temperature is 285 K. What would be the smallest possible temperature of the hot reservoir.
An electric wire that has a mass of 5 kg for a 20m length is strung between two poles 20 m apart. What should be the tension in the wire if it is to take 0.8 seconds for a pulse to travel along the wire from one pole to the other.
An asteroid is discovered heading straight toward Earth at 13 . An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 , after which the asteroid is moving at 29 to its original path at a speed of 18..
A clean copper surface is exposed to light of wavelength 275 nm. What is the maximum speed of the photoelectrons emitted from this surface? Use the table below copper=4.7eV.
A stone is projected at a cliff of height h with an initial speed of 45.0 m/s directed at an angle θ0 = 66.0° above the horizontal. The stone strikes at A, 5.37 s after launching. Find out (a) height h of the cliff, (b) speed of the stone just before..
A simple pendulum has a mass of 0.150 kg and a length of 3.00 m. It is displaced by an angle of 12.0° and then released. What is the utmost speed?What is the maximum angular acceleration?What is the maximum restoring force.
How does the solar nebula theory describe the dramatic density difference between the terrestrial and Jovian planets.
According to the Guinness Book of World Records (1990 edition, p. 169), the highest rotary speed ever attained was 2010 m/s (4500 mph). The rotating rod was 15 cm (5.9 in) long. Imagine the speed quoted is that of the end of the rod.
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