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A cue ball travelling at 5.0 m/smakes a glancing, elastic collision with a target ball of equalmass that is initially at rest. The cue ball is deflected so thatit makes an angle of 30° with its orginal direction of travel.
(a) Find the angle between the velocity vectors of thetwo balls after the collision.
°(b) Find the speed of each ball after the collision.
cue ball m/s
target ball m/s
A 75 kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 825N. what is the acceleratin of the elevator
The threshold of dark-adapted (scotopic) vision is 6 multiplied by 10-11 W/m2 at a central wavelength of 550 nm. If light with this intensity and wavelength enters the eye when the pupil is open to its maximum diameter of 7.5mm, how many photons p..
A motorist pulls into a gas station and uses a pressure gauge to check one of the tires on her car. What is the absolute pressure of the air in the tire
A flea's eye having a diameter of 0.003 mm is examined under a microscope. If the microscope has a magnification of 500X, determine the size of the image of the eye
a 2.00m by 3.00m plate of aluminum has a mass of 324kg. What is the thickness of the plate
A machine part is made from a uniform solid disk of radius R = 0.18m and mass M = 8.3kg. A hole of radius R/2 is drilled into the disk, with center of the hole at the distance R/2 from the center of the disk.
A highway curve with radius 900 is to be banked so that a car traveling 56.0 will not skid sideways even in the absence of friction. At what angle should the curve be banked
A sinusoidal wave travels along a string. The time for a particular point to move from maximum displacement to zero is 0.14 s. What are the (a) period and (b) frequency? (c) The wavelength is 2.5 m; what is the wave speed?
Four identical springs are used as part of a car's system, one on each wheel. what is the spring constant of each of these springs
You have a 120g meterstick. A) Where should you place the meterstick atop your finger so it balances? (Express your answer to two significant figures and include the appropriate units.) B) Where's the balance point if you place an additional 150 mass..
A mass of 0.450 kg rotates at constant speed with a period of 1.45 s at a radius of R 0.140 m . What is the rotation period for a mass of 0.550kg at the same radius
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 ..
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