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A car is traveling at a constant speed of 20 m/s (about 44 mi/h) that is initially traveling due northwest rounds a corner so that after 10 s, the car is traveling due northeast. What are the magnitude and direction of the car's average acceleration during this interval of time?
q1. two speakers one straight behind the other are each generating a 547-hz sound wave. what is the smallest separation
One mole of a monatomic gass initially at 273 K and 1 atm is compressed isothermally (T constant) from volume 22.4 L to 11. 4 L, Find the final pressure and draw a PV diagram, Labeling the initial and final states 1 and 2
A copper plate, with dimensions of 3 cm x 3 cm x 5cm length, width, and thickness respectively, determine the temperature rise in the plate after 10 seconds
In an ultrahigh vacuum system (with typical pressures lower than 10?7 pascal), find the number of molecules in a volume of 1.70 m3
A 13.5 kg raccoon falls out of a tree and hits the ground with a kinetic energy of 1237.0 J. What was the raccoon's velocity when it was 5.0 m above the ground
A double slit with d= 0.02 mm is illuminated by a blue laser at 450 nm and a red laser at 650 nm, what is the distance separating the blue and red fringe
A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.50 m and a mass of 575 kg. Before a trip, Find the kinetic energy stored in the flywheel
assume a bar 2 m long expands 0.6 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated.
U-tube mounted on wood (each arm is about 22 cm long) • Small glass funnel • Thin rubber sheet (5cm by 5cm) • Tall glass container or beaker about 1000 cu.cm capacity • Standard masses, Observe and record the levels of the colored water in arms A ..
A person pushes a 20 kg shopping cart at a constant velocity for a horizontal distance of 22 m. What is the work done by the gravitational force
The coefficient of kinetic friction between a suitcase and the floor is 0.272. how far can it be pushed across the level floor with 630J of work
A bicyclist rides 3.19 km due east, while the resistive force from the air has a magnitude of 8.83 N and points due west. Find the work done by the resistive force during the round trip
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