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determine the average pressure on the soles of the feet of a standing 813 kilogram person due to the contact force with
an underwater camera has a lens of focal length 35 millimeter and a maximum aperture of f280 the film it uses has an
a 9-m uniform beam of weight 77 n is supported with two ropes at the ends if a 27-n person sits at 6 m from the left
a car of mass 940 kg is traveling over the top of a hill as shown in the figure below1 if the hill has a radius of
a 1724 gram mass is on a horizontal surface with microk 0400 and is in contact with a mass less spring with a force
a skier of mass m started from rest at the top of a frictionless round hill of radius r as they slide down the side
a digital cell phone emits a 19 ghz electromagnetic wave with total power 060 watt at a cell phone tower 2 kilometer
a celebrity holds a press conference which is televised live a television viewer hears the sound picked up by the
two negative point charges are separated by 13 centimeter and feel a mutual repulsive force of 260 n the charge of one
a light ray is incident on the surface of water n 133 at an angle of 60 degree relative to the normal to the surface
a diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 degree relative to the normal if
a 45kg ball with a velocity of 44ms in the x-direction collides head-on elastically with a stationary 18kg ball1 what
engine 1 has an efficiency of 019 and requires 6000 joule of input heat to perform a certain amount of work engine 2
light strikes a diamond n 242 immersed in glycerin n 1473 at an angle of 60 degree relative to the normal to the
two wires are parallel and one is directly above the other each has a length of 50 meter and a mass per unit length of
at a county fair two children ram each other head-on while riding on the bumper cars jill and her car traveling left at
three resistors are connected to a 54 v battery r13omega r2601omega r34omega estimate the current through each resistor
in walking across a carpet you acquire a net negative charge of 60 muc find how many excess electrons do you
an electron and a proton are separated by 33 nma evaluate the magnitude of the force on the electronb evaluate the net
1 why should the voltmeter and ammeter be read simultaneously to decide the resistance of a circuit component2 if a
the string on a string bass vibrates at a fundamental frequency of 54 hertz if the strings tension were increased by a
a string is fixed at both ends and is vibrating at 117 hertz which is its third harmonic frequency the linear density
a train with a total mass 700e6kg rises 620m as it travels a distance of 910 km along a steady slope at a constant
the sahara desert with a very arid climate is one of the hottest regions in the world its average temperature is above
1 discover the magnitude of the linear momentum of a 1200 kg automobile traveling at 50kmh2 a 24kg mud ball drops from