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According to a reliable report, in 1795 a member of the Turkish embassy in England shot an arrowto a distance of 441m. According to a less reliable report, a few years later the Turkish Sultan Selim shot an arrow to 889 m. In each of these cases calcualte what must have been the minimum initial speed of the arrow.
A proton is released from rest inside a region of constant, uniform electric field E1 pointing due North. 27.3 seconds after it is released, What is the ratio of the magnitude of E2 to the magnitude of E1
A rotating door is made from four rectangular glass panes, as shown in the drawing. find the magnitude of the door's angular acceleration
the 2.0 cm diameter coil has 25 turns and has a current flowing through it of 5 A. The magnetic field strength is .4 T. What is the emf due to the change in flux
A huge explosion is heard 26.2 miles away. How long does it take the sound to travel that far
Bats emit a wide variety of sounds, one type emits pulses of sound having a frequency between 39kHz and 78kHz. What is the range of wavelengths of this sound in air
A 38 g bullet is fired with a speed of 180 m/s into a 5 kg sandbag pendulum that is free to swing. To what maximum vertical height will the pendulum rise.
Laser light of wavelength 6.30x10^2 nm is incident upon two narrow slits separated by 0.17 mm. how far apart are the interference fringes
A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. What is the total time the hare is moving
In a U-tube there is some water and on top of the water in one of the tubes there is oil (water and oil don't mix). Find the density of the oil
An electron has an initial velocity of 8.00 106 m/s in a uniform 7.00 105 N/C strength electric field. How long does it take the electron to come to rest
A construction worker accidentally drops a brick from a high scaffold. What is the velocity of the brick after 4.0 s
A commuter train blows its horn as it passes a passenger platform at a constant speed of 60.0 m/s. What is the frequency observed by a person on the platform as the train approaches
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