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a bullet with mass 20 grams and velocity 118 ms collides with a wooden block of mass 20 kg the wooden block is
a wind turbine converts some of the kinetic energy of the wind into electric energy suppose that the blades of a small
an astronaut is being tested in a centrifuge the centrifuge has a radius of 10 m and in starting rotates according to
two loudspeakers emit sound waves along the x-axis the sound has maximum intensity when the speakers are 25 cm apart
a football is kicked at an angle 370deg with a velocity of 200 ms calculate a the maximum height b the time of travel
three silver wires of equal length are connected in series with a 150 v battery their cross-sectional areas are 100 500
two particles with charges of 20 nc and -20nc are placed at the points with coordinates 0 4 cm and 0 -4 cm a particle
an interferometer is set up to carefully measure changes in length the laser source has a wavelenth of 632nm and the
while the repair shop works on your voltmeter they loan you an unusual replacement rather than measuring the potential
a large window measures 17 m by 29 m at what rate will heat be conducted through the window when the room temperature
a bob small ball is attached to the lower end of a cord that is attached to the cieling and moves in a horizontal
we require any information you may have on how plants stay at their distance with out floating away or smashing into
an electron is moving through a magnetic field whose magnitude is 83 x 10-5 t the electron experiences only a magnetic
the absorber surface of a solar collector is made of aluminum coated with black chrome a s 087 and e ir 009 solar
a cheetah standing by a tree accelerated directly east at a constant rate for one-half minute he then continued
city a is 150 miles from city b city c is 300 miles from city b a pilot flew a plane directly from city a to city b
a positive point charge is at the centre sorry im in canada of a cube how do i determine the flux through each face of
a body moves in a straight line with the square of its velocity being a linear function of displacement s as follows
a highway curves to the left with radius of curvature of 44 m and is banked at 29degrees so that cars can take this
a speaker with acoustic power 80 mw produces a steady tone consider the speaker as a point source and take the speed of
a car traveling at 40 ms and a truck traveling at 10 ms are on the same road the car blows its horn with frequency 500
a string with length l 080 m and linear density micro 25 gm is under tension f 40 n the string is fixed at each end
a bowling ball mass 72 kg radius 015 m and a billiard ball mass 033 kg radius 0028 m may each be treated as uniform
the tub of a washer goes into its spin cycle starting from rest and gaining an angular speed of 500 revs smoothly in
a person pushes a 140-kg lawn mower at constant speed with a force of f880 n directed along the handle which is at an