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A cart is propelled over an xyplane with acceleration components ax = 4.0 m/s^2 and ay = -2.0 m/s^2. Its initial velocity has components v0x = 8.0 m/s and v0y = 12 m/s.In unit-vector notation, what is the velocity of the cart when it reaches its greatest y coordinate?
if a plane wave is reflected from the ocean floor at normal incidence with a level 20 db below that of the incident
A bicyclist rides 3.01 km due east, while the resistive force from the air has a magnitude of 7.71 N and points due west. Find the work done by the resistive force during the round trip
a string has a linear density of 4.80 10-3 kgm and is under a tension of 345 n. the string is 1.5 m long is fixed at
A swimmer maintains a speed of 0.15 m/s relative to the water when he swims directly toward the opposite shore of a river. Calculate his velocity relative to an observer on shore
A 3 MH inductor and a 4 capacitor are in an LC circuit. The capacitor is charged to 5 and then the switch is closed. a. Sketch the graphs of q(t) and I(t). b. Calculate the period of oscillation. c. Calculate the potential energy in the circuit. d. C..
A diatomic gas at pressure P1= 6.0 × 105-Pa undergoes an isobaric expansion from a volume of V1= 0.99-m3 to a volumeV2= 1.9-m3, then undergoes an isovolumetric change to pressure P2= 1.1 × 105-Pa, followed by an isobaric contraction back to V1 and fi..
Determine the value of the compressor isentropic efficiency that causes the overall thermodynamic thermal efficiency of this system to be exactly zero.
A 40.0g ball of clay traveling east at 4.50m/s collides and sticks together with a 40.0g ball of clay traveling north at 5.50m/s
Tarzan has foolishly gotten himself into another scrape with the animals and must be rescued once again by Jane. How high will Tarzan and Jane go on their first swing
A race car starts from rest and drives as fast as possible over the"L" shaped course on the board. X=120m, R=35m. the car canaccelerate at a 9.0 m/s^2 under any condition (speeding up, slowingdown or turning). how long will it take to run the cour..
An electron is confined to a finite square well whose "walls" are 8.0 eV high. estimate the width of the well
A mass on a string of unknown length oscillates as a pendulum with a period of 6 s. What is the period in the following situations, determine The mass is doubled
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