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an object is placed in front of a concave mirror with a focal length of 37 cm what is the position of the resulting
a uniform rod of mass 320times102 and length 0430 rotates in a horizontal plane about a fixed axis through its center
we can roughly model a gymnastic tumbler as a uniform solid cylinder of mass 680 kg and diameter 120 m if this tumbler
the box of a well-known breakfast cereal states that one ounce of the cereal contains 128 calories 1 food calorie 4186
a sinusoidal wave on a string is described by the wave function y 019 sin 090x 62t where x and y are in meters and t
a bullet of mass 114 g is fired into an initially stationary block and comes to rest in the block the block of mass 114
a transverse wave on a string is described by the following wave function y 0105 sin 12x 5t where x and y are in
a compute the impulse necessary to bring to rest the 450 kg driver of an automobile initially moving at 260 msb find
consider the sinusoidal wave of in the figure below with the wave function y 0150 cos 157x 503t where x and y are in
a seismographic station receives s and p waves from an earthquake separated in time by 168 s assume the waves have
the eye is most sensitive to light having a frequency of 545 1014 hz which is in the greenndashyellow region of the
assume the intensity of solar radiation incident on the cloud tops of the earth is 1 518 wm2 a taking the average
in 1965 arno penzias and robert wilson discovered the cosmic microwave radiation left over from the big bang expansion
a radio wave transmits 167 wm2 of power per unit area a flat surface of area a is perpendicular to the direction of
a 5 kg ball and 10 kg ball approach eachother with a speed of 20 ms if they collide perfectly inelasticially the speed
at one location on the earth the rms value of the magnetic field caused by solar radiation is 185 microt a calculate
a 40 kg girl standing at rest on the ice gives a 60 kg boy who is also standing at rest on the ice a shove after the
a spherical bubble rises from the bottom of a lake whose temperature is 5c at the bottom and 28c at the surface if the
an electron moves through a uniform electric field 230 490 vm and a uniform magnetic field 0400 t determine the
a steel section of the alaskan pipeline had a length of 676 m and a temperature of 161c when it was installed what is
a person wears a hearing aid that uniformly increases the sound level of all audible frequencies of sound by 357 db the
a 10000kg railroad car is traveling with an initial speed of 240 ms when it strikes an identical railroad car that is
a 20 kg ball is thrown at the suspended 294 kg block with a velocity of 35 ms the coefficient of restitution between
a 500 g object moving to the right at 20 cms makes an elastic head on collision with a 100 g object that is initially
a concave spherical mirror has a radius of curvature of magnitude 274 cma determine the object position for which the