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A jet fighter flying at 300 m/s (just below the speed of sound) makes a turn of radius 2.70km.(a) What is its centripetal acceleration in gs?(b) Suppose the pilot makes an emergency turn to avoid an approaching missile, subjecting himself to a centripetal acceleration of 10 gs, while flying at 640 m/s (supersonic). What is the radius of his turn? (This must be short-lived because fighter planes can only briefly endure such large accelerations without serious damage, and the pilot will soon black out at 10 gs.)
A rocket traveling 1850 m/s away from the Earth at an altitude of 6800 km fires its rockets, at what rate must the gases be ejected
On one of the shelves in your physics lab is displayed an antique telescope. A sign underneath the instrument says that the telescope has a magnification of 20, what is the focal length fe of the eyepiece
A microscope uses an eyepiece with a focal length of 1.65 cm . Using a normal eye with a final image at infinity, What is the magnification of the microscope
An electron moves with a speed of 1.5x107 m/s in the directions shown in (Figure 1) below. A 0.30 T magnetic field points in the positive x-direction. What is the magnitude of the magnetic force in figure (a)?
A sound of frequency 200 Hz is reflected off an approaching car. What is the frequency of the reflected sound
A concave mirror has a focal length of 20 cm. What is the position (in cm) of the resulting image
A 0.6 kg block of ice is sliding by you on a very slippery floor at 3.5 m/s. As it goes by, you give it a kick perpendicular to its path. Your foot is in contact with ice block for 0.0035 seconds.
To tighten a spark plug, it is recommended that a torque of 13.6 N•m be applied. find the minimum force necessary to create the desired torque
a hiker who weighs 934 n is strolling through the woods and crosses a small horizontal bridge. the bridge is uniform
A uniform disk of mass M = 5.6 kg has a radius of 0.14 m and is pivoted so that it rotates freely about its axis. What is the torque being exerted by this force about the rotation axis
A diver on a diving board is undergoing simple harmonic motion. Her mass is 55.0 kg and the period of her motion is 0.800 s. What is his mass if the mass of the board is negligible
There are two stable isotopes of the element Lithium. One of them has three neutrons and the other has four. All other isotopes are radioactive withshort half lives. Using the periodic table in the textbook, find the listed mass of lithium, inamu
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