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The three air carts shown in figure 9-16 have masses,reading from left to right, of 4m,2m,and m,respectively.The most massive cart has an initial speed of V0 ; the other twocarts are at rest initially. All carts are equiped with spring bumpers that gives elastic collisions.(a) find the final speed of each cart (b) Verify the final kinetic energy of the system is equal to the initial kinetic energy. (Assume the air track is longenough to accommodate all collisions.?)
A thin metal film of length 2.80 cm, width of 0.700 cm, and thickness of 30.0 micrometers is used to measure the Hall effect. Calculate the drift velocity of the charge carriers
A steel pipe 22 m long, installed when the temperature was 15°C, is used to transport superheated steam at a temperature of 125 °C. Steel's coefficient of linear expansion is 1.2 × 10-5 K-1. The pipe is allowed to expand freely when the steam is tran..
A 50.0-g bullet is shot straight upward with a muzzle speed of 350 m/s. Find the maximum height the bullet can reach
Kathy Kool buys a sports car that can accelerate at the rate of 5.20 m/s2. She decides to test the car by racing with another speedster, Find the time it takes Kathy to overtake Stan
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1230 Hz. The bird-watcher, however, hears a frequency of 1260 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
A loop of diameter 15 cm is placed in a uniform electric field of magnitude 6.0 102 N/C. (a) What is the electric flux through the loop when the electric field is perpendicular to the plane of the loop? N·m2/C.
a variable capacitor is connected in series to an inductor with negligible internal resistance and of inductance 4.25 x
What is moment of inertia
q1. a proton travels with the speed of 8.34times105 ms at an angle of 32.3deg with the direction of a magnetic field.
A solid uniform disk of mass M = 8.8 kg and radius R = 21 cm rests with its flat surface on a frictionless table (i.e., the axis of the cylinder is perpendicular to the table.) The diagram shows a top view. A string is wrapped around the rim of th..
A Doppler ultrasound unit is used to measure the motion of blood in a patientâ€TMs artery. What is the maximum speed of the blood in the artery
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