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a) An arc 14.0 cm in length on the circumfrence of a circle subtends an angle of 126 degrees. What is the radius of the cirlce?
b) The angle between two radii of a circle with radius 1.50m and .850 rad. What length of arc is intercepted on the circumfrence of the circle by the two radii?
A high-energy pulsed laser emits a 1.2-ns-longpulse of average power 1.3×1011W. Determine the rms value of the electric field
A car travelling 80 km/h slows down at a constant 0.50 m/s^2 just by "letting up on the gas." Compute the distance the car coasts before it stops in meters.
A microscope uses an eyepiece with a focal length of 1.65 cm . Using a normal eye with a final image at infinity, What is the magnification of the microscope
An airplane's takeoff speed is 320 km/h. If its average acceleration is 2.90 m/s^2, how long is it on runway after starting its takeoff roll.
A uniform magnetic field B is confined to the square region with side of length 2L.
A block of ice of mass 8 kg, released from rest at the top of a frictionless ramp of a 1.50m long slides downhill, reaching a speed of 2.50 m/s at the bottom.
A uniform solid sphere of mass 1.5 kg and diameter 30.0 cm starts from rest and rolls without slipping down a 35° incline that is 7.0 m long. Determine the angular speed of the sphere about its center at the bottom of the incline
Two new particles, which have identical positive charge q3, are placed the same 0.0434 meters apart, and the force between them is measured to be the same as that between the original particles, What is q3
A particle in the solar system is under the combined influence of the Sun's gravitational attraction and the radiation force due to the Sun's rays, Calculate this critical radius
The spin cycles of a washing machine have two angular speeds, 431rev/min and 622rev/min . The internal diameter of the drum is 0.440m. Find the laundry's maximum tangential speed
A 1.0mm -diameter, 40cm -long copper wire carries a 3.5A current, What is the potential difference between the ends of the wire
A ball of mass 4.9 g with a speed of 22.5 m/s strikes a wall at an angle 29.0o and then rebounds with the same speed and angle. compute the average force exerted by the ball on the wall
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