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1. Convert the following angles from degrees to radians, to three significant figures: a) 15°, b) 45°, c) 90° and d) 120°.
2. A jogger on a circular track that has a radius of 0.250km runs a distance of 1.00 km. What angular distance does the jogger cover in a) radians and b) degrees?
3. In Europe, a large circular walking track with a diameter of 0.900 km is marked in angular distances in radians. An American tourist who walks 3.00 mi daily goes to the track. How many radians should he walk per day to maintain his daily routine?
4. Electrical wire with a diameter of 0.50cm is would on a spool with a radius of 30 cm and a height of 24cm. a) Through how many radians must the spool be turned to wrap one even layer of wire? B) What is the length of this wound wire?
5. If a particle is rotating with an angular speed of 3.5 rad/s, how does it take for the particle to go through one revolution?
A solid cube of wood of side 2a and mass M is resting on a horizontal surface. The cube is constrained to rotate about an axis AB. A bullet of mass m and speed v is shot at the face opposite ABCD at a height of 4a/3. The bullet becomes embedded in th..
When a signal of intensity 3.0kWm-2 is applied at the input of an amplifier of length 10m, the output signal intensity is 36kWm-2. When the input intensity is reduced to 1.0kWm-2 the output is 20kWm-2.
A converging lens with a focal length of 14.0 cm and a diverging lens are placed 26.0 cm apart, by the converging lens on the left. A2.00 cm high object is placed 22.0 cm to the left of the converging lens. The final image is 34.0 cm to the left of t..
A 1.80-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 2.30sin(2?t), Find the resonance angular frequency of the system
A planet of mass m = 1.15 × 10^24 kg is orbiting in a circular path a star of mass M = 1.65 × 10^29 kg. What is the orbital period (in earth days) of the planet Tplanet
A wall clock has a minute hand with a length of 0.55 m and an hour hand with a length of 0.26 m. Take the center of the clock as the origin, and use a Cartesian coordinate system with the positive x axis pointing to 3 o'clock and the positive y ax..
one component of a magnetic field has a magnitude of 0.0262 t and points along the x axis while the other component has
Two equally charged insulating balls each weigh 0.50 g and hang from a common point by identical threads 30 cm long, What is the magnitude of the charge on each ball
Mass m1=10.0kg is located at the origin of a coordinate system. Mass m2=20.0kg is 1.20m to the right along the x axis. Find the coordinates of the center of mass of this system
question calculate the wavelength of the emitted photon when an electron drops between the n 4 and n 3 energy levels
A hockey puck slides with an initial speed of 26 m/s on a large frozen lake. What is the speed of the puck after 13 s
An electric dipole consists of 0.600g spheres charged to ± 2.30nC at the ends of a 9.00cm -long mass less rod. The dipole rotates on a frictionless pivot at its center. The dipole is held perpendicular to a uniform electric field with field strength ..
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