What is the vertical component of initial velocity
A projectile, fired with unknown initial velocity, lands 18.8 s later on the side of a hill, 3140 m away horizontally and 433 m vertically above its starting point. What is the vertical component of its initial velocity?
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A nurse applies a force of 4.40 N to the piston of a syringe. The piston has a radius of 4.00 mm. What is the pressure increase in the fluid within the syringe?
Sam, whose mass is 60 kg, takes off across level snow on his jet-powered skis. The skis have a thrust of 280 N and a coefficient of kinetic friction on snow of 0.15. Unfortunately, the skis run out of fuel after only 15 s.
A 35.6g sample of ethanol is burned a bomb calorimeter, according to the following reaction. If the temperature rose from 35.0 to 76.0c and the heat capacity of the calorimeter is 23.3kj/c what is the value of enthalpyH reaction? the molar mass o
What incidents and events increased southern fears concerning the growing northern hostility toward the southern way of life? How correct was the south in these fears?
What volume of 3.00M HCl in liters is needed to react completely (with nothing left over) with 0.500L of 0.200M Na2CO3?
If 80.0 g of ethylene and 125 g of HCl are allowed to react at atmospheric pressure and the volume change is -63.9 L? What is the value of (in kilojoules) for the reaction?
After chopping wood for about 2 hours on a hot but breezy afternoon, john stumbled into the house and then fainted. His T-shirt was wringing wet with perspiration, and his pulse was faint and rapid. Was he suffering from heat stroke or heat
A 160.0 g ball on a 70.7 cm long string is swung in a vertical circle about a point 184.0 cm above the floor. The string suddenly breaks when it is parallel to the ground and the ball is moving upward. The ball reaches a height 543.0 cm above the
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