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A uniform chain of total mass m is laid out straight on a frictionless table and held stationary so that one-quarter of its length, L = 2.85 m, is hanging vertically over the edge of the table. The chain is then released. Determine the speed of the chain at the instant when only one-quarter of its length remains on the table.
In exercising, a weight lifter loses 0.123 kg of water through evaporation, find the change in the internal energy of the weight lifter
A 2.40 MHz sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward the sound receiver as the heart beats.
A projectile is fired straight upward from the Earth's surface at the South Pole with an initial speed equal to one third the escape speed. What is the altitude of the projectile at this instant
a kereru new zealand wood pigeon travelling at 1.5 m/s due west has an elastic collision with an airbus a380 aeroplane. with what speed is the kereru travelling after the collision?
600 nm light is shined on a single slit which is 0.1mm wide, What is the width of the central maximum
A small cube, s=0.25m, sits on a surface where a uniform electric field of 250.0 N/C is directed downward at a 35.00 angle to the horizontal, Find the flux through either of the two sides for which flux is maximum
A particle moving along the x axis in simple harmonic motion starts from its equilibrium position, the origin, at t = 0 and moves to the right. The amplitude of its motion is 1.70 cm and the frequency is 1.30 Hz.
Scientists in a laboratory produce a sound wave in a simulated environment (air) with a velocity of 479 m/s. What is the temperature (in Kelvin) of the environment
In the deep space between galaxies, the density of atoms is as low as 1X10^6 atoms/m^3, and the temperature is a frigid 270 K. If this volume is a cube, what is the length of its sides in kilometers
Suppose you have a 9.00 V battery, a 2.2uF capacitor, and a 9.05uF capacitor. Find the total charge stored in the system if the capacitors are connected to the battery in series in C
a sound wave of frequency 1225 hz travels through the air directly toward a wall, what is the initial wavelength of the sound
Find the final velocity of the combined mass after an in elastic collision 500g at 4m/s toward 300g 2 m/s and the change of KE
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