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A student gets his car stuck in a snowdrift. Not at a loss, having studied physics, he attaches one end of a stout rope to the car and the other end to the trunk of a nearby tree, allowing for a small amount of slack. The student then exerts a force width=on the center of the rope in the directionperpendicular to the car-tree line as shown in Figure P8.25. If the rope is inextensible and the magnitude of the applied force is 475 N, what is the force on the car? (Assume equilibrium conditions
A 220 g air-track glider is attached to a spring. The glider is pushed in 12cm against the spring, and then released. A student with a stopwatch finds that 16 oscillations take 11.5.
at what frequency would the wavelength of sound in air be equal to the mean free path of oxygen molecules at 1.03 atm
Standing 2.0 m in front of a small vertical mirror, you see the reflection of your belt buckle, which is 0.70 m below your eyes. What is the vertical location of the mirror relative to the level of your eyes and what angle do your eyes make with t..
As a new electrical technician, you are designing a large solenoid to produce a uniform 0.250Tmagnetic field near its center. What current will you need to produce the necessary field
A flatbed truck is carrying a 20.0 kilogram crate up a sloping road inclined 15.0o above the horizontal. Find the maximum acceleration that the truck can have if the crate is to stay in place
Four stars with equal masses m=1.99×1030 kg are located at the corners of a square, What is the magnitude of the net force on the star at the origin
A group of hikers hears an echo 3 s after shouting. If temperature is 16°C, how far away is the mountain that reflected sound wave.
A microscope has an objective that has a focal length equal to 6.6 mm. what is the laternal magnification of the objective
What is the gauge pressure of the air in the tires when its temperature rises to 27 .00C and its volume increases to 1.67 x 10-2 m3? Assume atmospheric pressure is 1.01 x 105 Pa.
a assume the maximum shear stress that bone as a material can withstand is tau max 57 mpa prior to failure. determine
A 4.9 kg block is initially at rest on a horizontal frictionlesssurface when a horizontal force in the positive direction ofan x axis is applied to the block. The force isgiven by (x) = (2.8- x2) N, where x is inmeters and the initial position of ..
What is the breaking strength
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