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the temperature of 600 g of cold water rises by 15 c when 300 g of hot water at 50 c is added to it what was the
a canoe has a velocity of 0520 ms southeast relative to the earth the canoe is on a river that is flowing at 0470 ms
part 11 a ship has a top speed of 30 ms in calm water the current of the ocean tends to push the boat at 20 ms on a
1 a 40-kg child is standing still on a 10-kg skateboard which is also at rest if the child walks to the right at 2ms
1 a block is launched with initial speed 25ms up a frictionless inclined ramp it slides 47cm up the ramp before heading
1 take the web quiz located athttpwwwansorgpiresourcesdosechartwhich tries to estimate your annual radiation dose what
mica strip and a polystyrene strip are fitted on the two slits of a double slit apparatus the thickness of the strips
in the figure on the right hrw figure 22-21 three charged particles lie on a straight line and are separated by a
a 10 kg block is hanging from 2 ropes one exerts a 50 n force at a 15ordm angle the other exerts a 95 n force at a
a circular hole is punched out of a circular disc such that the diameter of the circular hole is a radius of the discif
a full-size car m 1000 kg is going to have a race down a hill against a tiny toy car m 1 kg both will be released
a car stops suddenly during a head-on collision causing the drivers brain to slam into the skull the resulting injury
a person walks 230deg north of east for 370 km how far due north and how far due east would she have to walk to arrive
what is the main difference between active and passive forces i know which forces are which i really just need a
1 an intern pushes a 72 kg patient on a 15 kg gurney producing an acceleration of 060 ms2a how much work does the
1 a snowmobile is originally at the point with position vector 283 m at 950deg counterclockwise from the x axis moving
suppose you measure the time it takes you to do this assignment as 1234567 s with an uncertainty of 54321 s what value
two cylindrical rods one copper and the other iron are identical in lengths and cross-sectional areas they are joined
a banked turn of radius r100m is designed for a car with speed 50kmh if the car is travleing at 70kmh what is the
a dual voltagedual resistance ac hair dryer can be used with a 120 v or 230 v power supply a switch allows the user to
what does the conductivity of electrolytic solutions depend
a 30 cm long string with one end clamped and the other free to move transversely is vibrating in its second harmonic
a prismatic bar is under an axial load producing a compressive stress of 75 mpa on a plane at an angle q 30deg fig p13
question a motorist drives along a straight road at a constant speed of 80 ms at t 0 she passes a parked motorcycle
one mole ofnbspgalliumnbsp6x1023atoms has a mass ofnbsp70nbspgrams as shown in the periodic table on the inside front