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A ladder of weight 200 N and length 10 meters leans against a smooth, friction less wall. A fire fighter of weight 600 N climbs a distance up the ladder. The coefficient of static friction between the floor and the ladder is 0.5. The angle between the floor and the ladder is 50 degrees. Find the maximum distance the fire fighter can climb up the ladder if the ladder is not to slip?
a woman of mass m stands at the edge of a solid cylindrical platform of mass m and radius r. at t 0 the platform is
A long straight wire carries a current of 40 A in a region where a uniform external magnetic field has a 30-µT magnitude and is parallel to the current
A 2.1 ? 103-kg car starts from rest at the top of a 4.5-m-long driveway that is inclined at 15° with the horizontal. find the speed of the car at the bottom of the driveway
the distance of light speed in a 24hr p. x 365 days up to 1 thousand years as a constant would equal a finite distance
a cylinder contains 3.2l of oxygen at 340k and 2.6 atm . the gas is heated causing a piston in the cylinder to move
An object is 24.0 cm from a concave mirror with a focal length of 18.0 cm. How far is the objects image from the mirror
a target shooting game wooden blocks are thrown into the air and shot in flight. a block of 0.8kg has a speed of 10 ms
A water hose 4.00 cm in diameter is used to fill a 25.0 L bucket. If it takes 3.00 min to fill the bucket, If the hose has a nozzle 2.00 cm in diameter, find the speed of the water at the nozzle
a cell phone transmits at a frequency of 1.95times108 hz. whatis the wavelength of the electromagnetic wave used by
The magnetic force per meter on a wire is measured to be only 21% of its maximum possible value
The pendulum pictured above has a length of 15.0 cm when it is displaced to the right of the peg, Determine the period for this pendulum close to the surface of the Earth
A double slit is opposite the center of a 1.7-m wide screen 2.3 m from the slits. The slit separation is 24 µm and the width of each slit is 7.2 µm. How many fringes are visible on the screen if the slit is illuminated by 590-nm light?
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