Consider a moving object whose position x is plotted as a function of the timet. the object moved in different ways during thetime intervals denoted i, ii and iii on thefigure. during these three intervals, when was the object’s speedhighest? do not confuse the speed with the velocity.

Select the correct answer. brian is repairing an old alarm clock. he needs to replace a device that converts the electric energy into sound energy. which of these devices should he use? a. battery b. buzzer c. motor d. switch

How well does the extrapolated value (the slope of the trend line) agree with the accepted value of free-fall acceleration (g = 9.8 m/s2)?

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)