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an athlete competing in the long jump leaves the ground with a speed of 914 ms at an angle of 55deg with the vertical
a 105-kg box on the right and a 40-kg box on the left are tied together by a horizontal cable the 105-kg box is acted
a rod of constant cross-sectional area has conductivity kappa1 and conducts heat at a constant rate between two
an astronomical unit au is equal to the earths semimajor axis in its orbit around the sun or 150 x 10 11 m an asteroid
a 72kg mass hanging from a spring scale is slowly lowered onto a vertical springa what does the spring scale read just
a string with one 10-g washer on the end is attached to the rearview mirror of a car when the car leaves an
you pull a rope oriented at 37deg angle above the horizontal the other end of the rope is attached to the front of the
a 57 kg astronaut including spacesuit and equipment is floating at rest a distance of 9 m from the spaceship when she
the earth rotates on its axis once every 24 hours find the centripetal acceleration of an object on the equator that
a cylinder of radius b 25mm has an enclosed charge of 573 mc contained in a closed gaussian surface of radius r 17mm
a 1700 hz siren and a civil defense official are both at rest with respect to the ground what frequency does the
this high performing solar panel by sunforce is 24 by 54 its maximum power output is 100w when placed under full noon
a rectangular block of ice with dimensions 4m by 5m by 04 m floats on water what is the weight of the ice in
at one point in the novel slapstick by kurt vonnegut the force of gravity on the earth suddenly increased tremendously
a syringe is set up filled with air mainly n2and o2 as shown in the diagram below the cross-sectional area of the
calculate the moment of inertia of two thin hollow plastic spheres stuck together routing about their common center of
a workman accidentally drops a wrench over the side of a high-rise building someone looking out of a window on a floor
a modern-day zeppelin holds 12000 m3 of helium what is the buoyant force on the zeppelin at sea
a 5-kg block being pulled across a table by a horizontal force of 90 n also experiences a frictional force of 30 n what
a streptococcus bacterium can reproduce itself in about 30 minutes if there is adequate nutritional materials and
a man-made satellite orbits the earth in a circular orbit that has a radius of 10000 km the mass of the earth is 597e24
a pilot wants to fly 800 km due north he can fly 500 kmhr in still air he finds he has to head his plane 20deg e of n
a mass of 10 kg is placed on a horizontal surface with friction with a coefficient of static friction of 081 and
suppose that an object explodes in outer space a distance d 1 times 106 km from theearth gamma ray photons with
an ant crawls on the surface of a ball of spherical coordinates rb phiwt thetapi21 14 cos4wt find acceleration and xy