Asled is pushed along an ice covered lake. it has some initial velocity before coming to rest in 15m. it took 23 seconds before the sled and rider come to rest. if the rider and sled have a combined mass of 52.5kg, what is the magnitude and direction of the stopping force?
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Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge
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Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
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Physics, 22.06.2019 12:00
The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
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Asled is pushed along an ice covered lake. it has some initial velocity before coming to rest in 15m...
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