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a block of mass m 7166 kg is pulled along ahorizontal frictionless surface by a rope of mass m 0470 kg as shown in fig
a pulley with a radius of 30 cm and a rotational inertia of45times10minus3 kg middotm2 is suspended from the ceiling a
in the figure a block slides along a path that is without friction until the block reaches the section of lengthl 0710
am radio signals are broadcast at frequencies between 530 khz and1605 khz kilohertz and travel 30 108 msa what is the
light is emitted from an ordinary lightbulb filament in wave-trainbursts about 10 - 8 rms in duration what is the
a circular saw is powered by a motor when the saw is used to cutwood the wood exerts a torque of 080n middot m on the
a pendulum consists of a 31 kg stone swinging on a 38 m string of negligible mass the stone has a speed of 79 ms when
two blocks are connected by a light weight flexible cord thatpasses over a frictionless pulley if m1 is 37 kg and m2 is
1 a projectile is fired with an initial speed of 1000 ms at anangle of 37o above the horizontal if air resistance is
long thin uniform rod lies motionless in fric free horizontalplane along y-axis its pinned to the ground with a
a converging lens has a focal length of 0060m an object is located 0030 m to the left of this lens a secondconverging
from a distance of 65 m a photographer usesa telephoto lens f 3000 mm to take a picture of acharging rhinoceros how
to focus a camera on objects at different distances the converging lens is moved toward or awayfrom the film so a sharp
the skateboarder in the drawing starts down the left side of the ramp with an initial speed of 385 ms if
the drawing shows two boxes resting on frictionless ramps one boxis relatively light and sits on a steep ramp the other
a generator is connected across the primary coilnp turns of a transformer while a resistancer2 is connected across the
a 155 g copper bowl contains205 g of water both at 200degc avery hot 300 g copper cylinder is dropped into the water
a 500-kg pole vaulter running at 100 ms vaults over thebar her speed when she is above the bar is 10 ms neglect air
a horizontal force of 159n pushes a 20 kg block up a frictionlessincline that makes an angle of 35 degrees with the
an electric eel generates electric currents through its highly specialized hunters organ in which thousands of
a glass is half-full of water with a layer of vegetable oiln 147 floating on top a ray of light traveling downward
a proton and an alpha particle are momentarily at rest at adistance r from each other they then begin to move apart
the membrane of the axon of a nerve cell is a thin cylindricalshell of radius r 10-5 m length l 009 m and thickness d
the graph shows the net external force component fcos along the displacement as a function ofthe magnitude s of the
a projectile of mass 0610 kg is shot straight up with aninitial speed of 152 ms a how high would itgo if there were no