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a 350 n beam of uniform density is hinged on a wall a 200 n object hangs off the end of the beam at a distance l from
1 a 1kg ball with velocity 20ms bounces perpendicularly off a wall so it has the similar speed afterward if the average
the coefficient of static friction among the floor of a truck and a box resting on it is 026 the truck is travelling at
the density of matter in interstellar space is approx one electron and one proton per cubic centimetrenbsp what is the
it is possible to shoot an arrow at a speed as high as 119 msa if friction is neglected how high would a narrow
a ball is thrown vertically upward by a speed of 100 msa how high does it riseb how long does it take to reach its
a noisy machine in a factory produces sound by a level of 80 dbnbsp how many identical machines could you add to the
at rest a cars horn sounds the note a 440 hz the horn is sounded while the car is moving down the street a bicyclist
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a worker uses a pulley system to raise a 240kg carton 165 m a force of 129 n is exerted and the rope is pulled 330m1
a ball of mass 0640 kg moving east x direction with a speed of 320 ms collides head-on by a 0480 kg ball at rest if the
white light strikes a diffraction grating 890 linesmm at normal incidencenbsp what is the highest order visible maximum
the deepest point in the ocean is 11 km below sea level deeper than mt everest is tallwhat is the pressure in
160 g of gasoline is mixed with 60 g of water what is the average density of the mixture240 cm3 of gasoline are mixed
a 073-kg magnetic target is suspended on a string a 0025-kgmagnetic dart shot horizontally strikes the target head-on
a singly charged positive ion has a mass of 320x10-26 kg after being accelerated from rest during a potential
a conductor suspended by two flexible wires as in the figure below has a mass per unit length of 00500 kgm what current
1 oil of density 7 gcm3 is held in a large container 20m off the ground and filled to a height of 2 m flows into a 1 cm
the number of radioactive nuclei present at the start of an experiment is 4701015 the number present 22 days later is
an rc circuit hooked up to a battery as shown in the figure box with epsilon to a capacitor by resistance and an
the wave purpose for a harmonic wave on a string isdxt 003 m sin 22 m-1x ndash 35 s-1twhat is the maximum speed of any
a spring is 170 cm long when it is lying on a table one end is then attached to a hook and the other end is pulled with
the planes of atoms in a cubic crystal lie parallel to the surface 087 nm apart x rays having wavelength 041 nm are
a magnetic field of 0436 t and a perpendicular electric field of 554 kvm act on a moving electron to produce no net
a mono energetic beam of electrons me 911 x 10-31 kg whose kinetic energy is 120 ev is incident on a single slit of