Physics, 20.09.2019 16:30 unknown337
Ariver flows due east at 1.60 m/s. a boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 10.3 m/s due north relative to the water.
a) what is the velocity of the boat relative to shore?
b) if the river is 300 m wide, how far downstream has the boat moved by the time it reaches the north shore?
Answers: 3
Physics, 21.06.2019 19:00
Adelivery truck leaves a warehouse and travels 2.60 km north. the truck makes a left turn and travels 1.25 km west before making another right turn to travel 1.40 km north to arrive at its destination. what is the magnitude and direction of the truck's displacement from the warehouse?
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Physics, 22.06.2019 11:30
Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)
Answers: 3
Physics, 22.06.2019 19:00
Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe
Answers: 1
Ariver flows due east at 1.60 m/s. a boat crosses the river from the south shore to the north shore...
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