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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. 2kg crate resting on the floor of the truck.
the magnitude jr of the current density in a certain cylindrical wire is given as a function of radial distance from
four particles with charges of 1.00 microc -2.00 microc 3.00 microc and -4.00 microc are located at the points 0 0 2.00
uniform thin rod of length L=2.5 m and mass 2 kg can rotate in a horizontal plane about a vertical axis through its center. what is the angular velocity of the rod immediately after the collision
An "energy bar" contains 21g of carbohydrates. If the energy bar was his only fuel, how far could a 68 kg person walk at 5km/hr? Express your answer using two significant figures.
Suppose the mirror is misaligned, so that the actual angle between the normal to the surface and due south is too large by 0.003°. By how many meters (due east) will the reflected ray miss the detector
For your senior project, you are designing a Geiger tube for detecting radiation in the nuclear physics laboratory. This instrument will consist of a long metal cylindrical tube that has a long straight metal wire running down its central axis.
q1. in a photoelectric effect experiment 325 nm photons strike a cathode that has a work function equal to 1.25 ev.
A meterstick is hung from a string at the 25-cm mark. A 0.50-kg object is hung from the zero end of the meterstick, What is the mass of the meterstick
Find the radii of synchronous orbits about Jupiter and about the Sun. [Their mean rotation periods are 10 hours and 27 days, respectively. The mass of Jupiter is 318 times that of the Earth. The semi-major axis of the Earth's orbit, or astronomical u..
A beam contains 4.0 108 doubly charged positive ions per cubic centimeter, all of which are moving north with a speed of 1.3 105 m/s
A 34.3 kg child starting from rest slides down a water slidewith a vertical height of 20.7 m. What is the child's speed halfway down the slide's vertical distance?----m/s What is the child's speed three-quarters of the waydown?---m/s
a pulley with a rotational inertia of 1.1 multiplied by 10-3 kgmiddotm2 about its axle and a radius of 11 cm is acted
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