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A pilot can withstand ten times the acceleration due to gravity, 10 g's, if he is wearing a special tight-fitting g-suit designed to keep the blood from rushing to his brain. (1 g = 9.80 m/s 2 ) An 85-kg pilot who is traveling east at 900. km/hr decides he want to go west. He makes a circle with 10 g's of acceleration.
a. What is the radius of the smallest circle in which the plane can turn around?
b. How much centripetal force acts on the pilot while he is in the turn?
After 1.86 days, the activity of a sample of an unknown type radioactive material has decreased to 88.8% of the initial activity
Calculate the Work required (in eV) to move a stationary electron from the location r3 to r5 in a hydrogen atom
A 70-kg ski jumper starts from rest 59 m above the ground on an icy track and flies off the track at an angle of 31°, With what speed does the skier leave the track
A dentist uses a small mirror of radius 45 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 14 mm from the tooth, what is the magnification of the resulting image.
A child loses his balloon, which rises slowly into the sky. If the balloon is 23 cm in diameter as the child loses it, what is its diameter at the following altitudes? Assume that the balloon is very flexible and so surface tension could be neglec..
Two strings are adjusted to vibrate at exactly 188 Hz. Then the tension in one string is increased slightly. What is the new frequency of the string
Two identical blocks are stacked one on top of the other. What is the maximum horizontal force that can be applied to the lower block without the upper block slipping
A set of 20 stairs, each of 20-cm height, is ascended by a 700 N man in a period of 1.25 s. Compute the mechanical work, power, and change in potential energy all through the ascent. I have 2800J. Where do I go from here.
In constructing a large mobile, an artist hangs an aluminum sphere of mass 5.3{\rm kg} from a vertical steel wire 0.42{\rm m} long and 3.0×10?3{\rm cm^2} in cross-sectional area. Compute the elongation strain for the bottom wire
q1. find out a capacitance and b maximum voltage that can be applied to a teflon-filled parallel- plate capacitor
Three boxes are being accelerated on a horizontal table with a 60-N force applied to box 1 at an angle 35o below the horizontal. What is the acceleration of the three boxes
An electron is at rest just above the surface of a sphere with the radius of 1.90 mm and a uniformly distributed positive charge of 2.1 x10-15 C.
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