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a 14-kg playground ball is moving with a velocity of 30 ms directed 30deg below the horizontal just before it strikes a
how is the principle on which the gaussmeter is based related to the motion of the electron perpendicular to a uniform
the collision between a hammer and a nail can be considered to be approximately elastic estimate the kinetic energy
a 20-kg block slides down a fixed rough curved track the block has a speed of 50 ms after its height above a horizontal
1 a solar eclipse is projected through a pin- hole of diameter 0247mmand strikes a screen 312 m away what is the
the diffusion constant for the alcohol ethanol in water is 124 10-9 m2s a cylinder has a cross-sectional area of 385
an object has a kinetic energy of 275 j and a momentum of magnitude 250 kg ms find the speed and mass of the
a government agency estimated that air bags have saved over 14000 lives as of april 2004 in the united states they also
a steel wire of length 202 with circular cross section must stretch no more than 0210 when a tensile stretching force
a car with a mass of 950-kg and an initial speed of v1 222 ms approaches an intersection as shown in the figure a
an 800 n box is pulled 190 m up a 30deg incline by an applied force of 97 n that points upward parallel to the incline
its your birthday and to celebrate youre going to make your first bungee jump you stand on a bridge 100m above a raging
a gyroscope with rotational inertia 60 10-3 kgmiddotm2 is precessing in a horizontal plane at 050 rads under the
a 40 cm tall object is placed 200 cm from a diverging lens of focal length 100 cm what is the nature and location of
if 114 g of calcium chloride is formed when 434 g of calcium is reacted with chlorinea how much chlorine combined with
a trains whistle is a pipe thats open at only one end is emitting a sound at its second overtone the train is moving at
a pipe that is closed on one end is 12 meters long what are its fundamental frequency and its first two overtones you
a rubber ball with a mass of 0135 kg is dropped from rest from what height was the ball dropped if the magnitude of the
a pulley is 18 meters away from the wall a 4 meter string that has a mass of 25 grams has one end attached to the wall
a disk and a hoop have the same mass and same radius they are put side-by-side at the top of an incline and released
you push a 20kg box on a wooden floor downward to the right at an angle of 60degrees to the vertical with a constant
a 13 cm long animal tendon was found to stretch 36 mm by a force of 132 n the tendon was approximately round with an
the wheel on a bench grinder has a diameter of 03048 m and a mass of 24 kg it is spinning at 262 rads when the grinder
a 10 kg hollow cylindrical shell rolls on the ground at a linear velocity of 5ms its diameter is 50 cm what is its