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a yo-yo-shaped device mounted on a horizontal frictionless axis is used to lift a 26 kg box as shown in the figure the
a uniform spherical shell of mass m 130 kg and radius r 0390 m can rotate about a vertical axis on frictionless
a 380 kg wheel essentially a thin hoop with radius 240 m is rotating at 460 revmin it must be brought to a stop in 230
a pulley with a rotational inertia of 11 x 10-3 kgmiddotm2 about its axle and a radius of 58 cm is acted on by a force
how fast as a percentage of light speed would a star have to be moving so that the frequency of the light we receive
monochromatic light of wavelength 600 nm illuminates a single slit of width 65 um and a diffraction pattern is created
a pulsar is a rapidly rotating neutron star that emits a radio beam the way a lighthouse emits a light beam we receive
the angular acceleration of a wheel is 50t4 ndash 30t2 with in radians per second-squared and t in seconds at time t
a resistor with r 15 k is connected to an ac generator that operates at 60 hz with an amplitude of 49 v a find the
a cue ball mass 0165 kg is at rest on a frictionless pool table the ball is hit dead center by a pool stick which
a 210-kg ball moving to the right at a velocity of 460 ms on a frictionless table collides head-on with a stationary
a projectile mass 0259 kg is fired at and embeds itself in a target mass 193 kg the target is initially stationary
a wagon is rolling forward on level ground friction is negligible the person sitting in the wagon is holding a rock the
a beam of unpolarized light shines on a stack of five ideal polarizers set up so that the angles between the
1 find the frequency in terahertz of visible light with a wavelength of 485 nm in vacuum answerthz2 what is the
a cylinder is 010 m in radius and 020 in length its rotational inertia about the cylinder axis on which it is mounted
a source emits sound of wavelength 254m an 274m in air use the speed of sound343ms a write the equations of these two
to listen to a radio station a certain home receiver must pick up a signal of at least 10x10-10 wif the radio waves
three uniform sticks each of mass are placed on the floor as follows stick 1 lies along the axis from 0 to 20 stick
a 900 kg car enters an unbanked curve with a radius oof 750 m the coefficient of static friction between the tires and
the fundamental frequency of a pipe that is open at both ends is 560 hz a how long is this pipe use v 344ms b if one
unless otherwise stated all objects are located near the earths surface where 98 a hockey puck with a weight of 10 is
a microwave oven can heat 205 of water from 200 to 900 in 200 if the wavelength of the microwaves is 152 how many
a jet pilot takes his aircraft in a vertical loop a if the jet is moving at a speed of 1200 kmh at the lowest point of
a spherical weather balloon is filled with hydrogen until its radius is 340 m its total mass including the instruments