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the cordinate of a particles in meters is given by xt 32t-t3 where time in secondsa what is the velocity as function
estimate the volume of your body consider your body to be a cylinder having a radius of about 6 inches or 015m and a
a beam of hydrogen molecules h2 is directed toward a wall at an angle of 38deg with the normal to the wall each
a steel tank contains 314 g of ammonia gs nh3 with molar mass 170 gmol at a pressure of 155 x 106 and a temperature of
gold has a molar mass of 197 gmola how many moles of gold are in a 909 g sample of pure goldb how many atoms are in the
110 of aluminum at and 220 of copper are dropped into 490 of ethyl alcohol at the temperature quickly comes to 250
a disk of radius 23 cm has a surface charge density of 62 microcm2 on its upper face what is the magnitude of the
given that the mass of mars is 64191 1023 kg the mass of a satellite is 4300 kg the radius of a uniform circular path
a projectile is launched from ground level to the top of a cliff which is 195m away and 155 m highif the projectile
a ball on the end of a string is whirled around in a horizontal circle of radius 0300 m the plane of the circle is 110
the intake in the figure has cross-sectional area of 080 m2 and water flow at 041 ms at the outlet distance d 180 m
a projectile is launched from a 300 m high cliff at an angle of 30 with an initial velocity of 150 ms g98ms2 begin by
a person lies flat on the sidewalk with her ear to the ground a limb falls and two distinct sounds are heard one from
in a loop-the-loop ride a car goes around a vertical circular loop at a constant speed the car has a mass m 2220 kg
it is believed that a large electric fish known as torpedo occidentalis uses electricity to shock its victims a typical
a spherical water drop 180 m in diameter is suspended in calm air owing to a downward-directed atmospheric electric
a positively charged oil drop of mass is injected into a region of uniform electric field between two oppositely
electronics and inhabitants of the international space station generate a significant amount of thermal energy that the
scientists want to place a 36000 kg satellite in orbit around mars they plan to have the satellite orbit a distance
youre in a uniform electric field of magnitude 300nca compute the potential difference if you travel 1 cm in the
three point charges have equal magnitudes two being positive and one negative these charges are fixed to the corners of
an electron moving horizontally at a velocity of 23x107 ms enters a region with an electric field of magnitude e52600
a single mass m1 45 kg hangs from a spring in a motionless elevator the spring is extended x 150 cm from its
a rope is attached to a car and pulled with a 75 n force at an angle of 15 degrees ne a second rope is attached to the
a gaussian surface in the form of a hemisphere of radius r 10 m lies in a uniform electric field of magnitude e