38.- A 50 kg woman is standing on the edge of a large 110 kg disk with a radius of 4.0 m that rotates at 0.50 (rev / s) about an axis that passes through the center of her. Calculate the magnitude of the total angular momentum of the woman-disc system (assume that the woman can be treated as a point). 28.- Express the kinetic energy of an electron moving at a speed of 106 m/s in eV. Repeat it for a proton. 18.- A stone is dropped from a height of 100 m. How long does it take to fall a) the first 50 m? b) the seconds 50 m?

2. A mass is moving on xy plane as shown in the Figure. Find the angular momentum of the mass about the origin. y (0, 70) (- 50, 0) (0,0) v = 100 m/s m = 2 kg

q2

Two particles are moving uniformly in opposite directions along parallel trajectories. The distance between the trajectories is d, as shown. Find: a. The total linear momentum of the particles. b. The angular momentum of the particles with respect to point O. c. Repeat part b. for points O, and O2. d. Answer the questions a through c if p, = p.

Q3. Consider an angular momentum 1 system, represented by the stak vector 14》= 上 4 1 1 2 126 1 0 What is the probabilty that a measurement of ix yields the value O ?

What moment is created by a force of 10Nm acting on a gate 2m wide.

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General physics 1 Give me solution What is the mass of an object traveling on a circular path with a radius of 2 meters and with a rate of 5 radians per second, given that its angular momentum is 140 kgm^2/s? A. 20 kg B. 7 kg C. 14 kg D. 10 kg