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a force 20n is applied to a 2 kg block on a tabletop with a coefficient of friction of 03 the force is applied to the
the potential energy of the strong interaction between two quarks has the approximate form vrbr where b is some
crew members-crew members attempt to escape from a damaged submarine 200 m below the surface what force must they apply
office window an office window has dimensions 39 m by 22 m as a result of the passage of a storm the outside air
the rms current in an rl circuit is 028 a when it is connected to an ac generator with a frequency of 600 hz and an rms
an he ion has one electron just as a hydrogen atom does but has two protons in its nucleus instead of just one a find
a hot air balloon plus cargo has a mass of 291 kg and a volume of 755 m3 the balloon is floating at a constant height
nbsp060 kg rubber ball has a speed of 230 ms at point a and kinetic energy of 83 j at point b a determine the balls
a vertical spring with a spring constant of 470nm is mounted on the floor from directly above the spring which is
suppose a nucleus of 93x236 fissions into two fragments whose mass ratio is 033067 with the aid of the drawing estimate
one kilogram of dry air at stp conditions is exposed to 100 r of x-rays one roentgen is defined by equation 321 in
suppose a neutrino is created and has an energy of 490 mev a assuming the neutrino like the photon has no mass and
a child is in danger of drowning in the merimac river the merimac river has a current of 31 kmhr to the east the child
a fellow astronaut passes by you in a spacecraft traveling at a high speed the astronaut tells you that his craft is
the absorption spectrum of an atom consists of the wavelengths 200 nm 300 nm and 500 nm what wavelengths are seen in
the figure shows a zero-resistance rod sliding to the right on two zero-resistance rails separated by the distance l
a 200 kg frictionless block is attached to a horizontal spring as shown at t 0 the position x 0225 mnbsp and the
an ideal monotonic gas is compressed at a constant pressure of 09 atm from 18 l to 45 l note atmospheric pressure is
assume a spacecraft is orbiting the earth at a constant radius of 700x103km at t0 a lateral rocket is fired that
an object of mass m is dropped at t 0 from the roof of a building of height h while the object is falling a wind
suppose magnetic monopoles may exist first start off by writing maxwells equations in electro- and magneto-statics and
in the atwood machine shown below m1 200 kg and m2 535 kg the masses of the pulley and string are negligible by
010mol of nitrogen gas follow the two processes shown in the figurefigure 1 part a how much heat is required for
a cube 21cm on each side contains 35g of helium at 20 circ rm c 1400j of heat energy are transferred to this gaspart a