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An alpha particle moves in a plane perpendicular to the Earth's North Pole. What is causing the particle to rotate with a velocity of 1.94E-6 m/s and a radius of 1 nm? Determine what direction is it travelling?
A uniform plank of length 4.7m and weight 204 N rests horizontally on two supports, with 1.1 m of plank hanging over the right support. To what distance x can a person who weighs 445N walk on the overhanging part of the plank before it just begins ..
The drawing shows a rectangular block of glass (n = 1.52)surrounded by liquid carbon disulfide (n = 1.63). A ray oflight is incident on the glass at point A with a θ =27.0° angleof incidence. At what angle of refraction does the ray leave the glass a..
A constant 3.80 Amp current moves along a straight wire that is perpendicular to a 2.00 T magnetic field. evaluate how much magnetic force will it experience
Mercury has a mass MP = 3.18 x 1023 kg, an orbital period T = 88.0 days, and an orbital radius r = 5.79 x 1010 m. Assume the orbit of Mercury around the Sun is approximately circular. Find the angular speed of Mercury about the Sun.
the plank cde has a weight of 30 lb and rests on a small pivot at d. the ll5-lb gymnast a is standing on the plank at c
Calculate the ratio of heating loss in a given length of wire (assumed ohmic) carrying current at 530 kV to when it operates at 120 V
A thin, hollow 60.0 g section of pipe of radius 15.0 cm starts rolling (from rest) down a 18.5° incline 5.40 m long. What will be its total kinetic energy at the base of the incline
A 0.0220 kg bullet moving horizontally at 450 m/s embeds itself into an initially stationary 0.500 kg block. How far does this combination travel before stopping
A 1.5 m long stick by a mass of 0.3 kg is pivoted on a hinge at one end and held horizontally by a spring with spring constant 10N/m attached at the other end. What is the frequency, f (in Hz), of small up and down oscillations of the stick?
The 20-cm-long wrench in the figure swings on its hook with a period of 0.74s, What is the wrench's moment of inertia about the hook
A figure skater through her finale can increase her rotation rate from an initial rate of 1.09 revolutions every 1.82 s to a final rate of 3.05 revolutions per second. If her initial moment of inertia was 4.52 kg*m2, what is her final moment of inert..
A 20.00 kg wood ball hangs from the 1.10 long wires. The maximum tension the wire can withstand without breaking is 600 N. A 0.710 kg projectile travelling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectil..
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