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A truck is traveling around a level curve of radius 104.2 m at an instantaneous speed of 20.4 m/s. The truck's speed is increasing at the rate of 2.18 m/s2. Discover the magnitude of the frictional force on a 105.2 kg crate resting on the floor of the truck.
Falls resulting in hip fractures are a major cause of injury and even death to the elderly. Typically, hip's speed at impact is about 2. If this can be reduced to 1.30 or less, hip will usually not fracture. One way to do this is by wearing elasti..
An object moving in a liquid experiences a linear drag force: D=(bv, direction opposite the motion), where b is a constant called the drag coefficient. For a sphere of radius R, the drag constant can be computed as b=6pnR, where n is the viscosity..
You have two containers of a monatomic ideal gas that are intially at the same Pressure, Volume, and Temperature. What is the difference in work done in these processes, 1 - 2
A uniform meter stick with a mass of 205 g is supported horizontally by two vertical strings, one at the 0 cm mark and the other at the 90 cm mark. what is tension on the string at the 0 cm mark and at the 90 cm mark.
a ball mass of 5 grams and radius of 1.5 cm is rolled up a frictionless ramp that is 30 degrees above horizontal with an iniitial velocity of 4 m/s
A pair of slits, separated by 0.160 mm, is illuminated by light having a wavelength of ? = 554 nm. An interference pattern is observed on a screen 144 cm from the slits. Consider a point on the screen located at y = 1.80 cm from the central maximu..
using the simulation adjust the transmitter so that it is in sinusoidal mode and the electrons are oscillating up and
A jet airplane is in level flight. The mass of the airplane is m = 8830 kg. The plane travels at a constant speed around a circular path of radius R = 8.45 miles and makes one revolution every T = 0.112 hours. What is the magnitude of the lift force ..
A neutron in a nuclear reactor makes an elastic, head-on collision with the nucleus of a carbon atom initially at rest. find the kinetic energy of the carbon nucleus after the collision
A 2.93 kg stone is tied to a thin, light wire wrapped around the outer edge of the uniform 9.83 kg cylindrical pulley, What is the rotational inertia of the pulley
The figure below shows a hollow cylinder that has a length equal to 1.80 m, a mass M equal to 0.88 kg, and radius equal to 0.20 m. The cylinder is free to rotate about a vertical axis that passes through its center and is perpendicular to the cylinde..
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Find the speed of the wagon after the rock is thrown directly forward
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