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while driving behind a car traveling at 595ms you notice that a tire has a hemispherical bump on its rim the radius of
light of wavelength 624 nm passes through a single slit and then strikes a screen that is 12 m from the slit the third
you are to purchase a grating that will cause the deflection of the n2 second- order bright band for red light to be
a 470 kg object on a horizontal frictionless surface is attached to a spring with spring constant 920 nm the object is
a 575 n woman climbs a staircase that rises at 54 degrees above the horizontal and is 410 m long her speed is a
a 755 n man stands in the middle of a frozen pond of radius 80 m he is unable to get to the other side because of a
a thick-walled copper pipe inner radius a and outer radius b is centered on the z-axis and carries a current density of
a rifle with a weight of 25 n fires a 30 g bullet with a speed of 240 msa find the recoil speed of the rifle msb if a
an elderly person with a body mass of 65 kg is walking while using a cane in one hand if the upward force that the cane
high-speed stroboscopic photographs show that the head of a 240 g golf club is traveling at 44 ms just before it
a car with a mass of 2000 kg is traveling at 20 ms how much kenetic energy in joules does the car have how much heat
suppose a flat roof has a surface area of 118000times102 m2 presume the air inside the building and under the roof is
an extreme skier starting from rest coasts down a mountain that makes an angle of 342 deg with the horizontal the
a 12 v battery is connected by a switch not shown in series to an inductor inductance 400 mh and a resistor resistance
under the influence of its drive force a snowmobile is moving at a constant velocity along a horizontal patch of snow
a 30 kg load is being raised by a force of 180 n using the ideal pulley arrangement shown in figure 6-7 what is the
a husband and wife take turns pulling their child in a wagon along a horizontal sidewalk each exerts a constant force
an ambulance with a siren emitting a whine at 1600 hz overtakes and passes a cyclist pedaling a bike at 244 ms after
the magnetic field at the center of a 0900-cm-diameter loop is 270mt a what is the current in the loop b a long
according to the shop manual when drilling a 118mm--diameter hole in wood plastic or aluminum a drill should have a
you mass 55 kg are riding your frictionless skateboard mass 50 kg in a straight line at a speed of 47ms when a friend
a ballistograph consists of a platform supported on air jets that allow sensitive recoil speed measurements of the
a fisherman throws the anchor off her boat at an angle of 30degabove the horizontal if the anchor weighs 40 times as
a machinist turns the power on to a grinding wheel at rest at time t 0 s the wheel accelerates uniformly for 10 s and
click on the energy vs position button to see a plot of the kinetic potential thermal and total energies as a function