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A 2.6kg block slides along a frictionless surface at 1.9m/s . A second block, sliding at a faster 5.0m/s , collides with the first from behind and sticks to it. The final velocity of the combined blocks is 3.1m/s .
What was the mass of the second block?
What's the magnitude of the electric field at an on-axis point a distance of .7m from a ring of charge with a total charge of .8microC
A 10m^3 tank of compressed natural gas has an absolute pressure of 400 kPa at a temperature of 27 C. What is the mass of the gas in the tank
A fire breaks out and increases the Kelvin temperature of a cylinder of compressed gas by a factor of 1.0
The diffraction pattern produced by the aperture is observed on a screen at a distance of 4 m from the aperture. The power density at the centre of diffraction pattern is measured to be 7 W/m2.
A duck is floating on a lake with 21% of its volume beneath the water. What is the average density of the duck
A double speed trap is set up on a freeway. One police cruiser is hidden behind a billboard, and another is some distance away under a bridge. As a sedan passes by the first cruiser, its speed is measured to be 99.7 mph.
This isotope can also decay by ?-emission. What is the energy release in this case? What is the maximum kinetic energy of the emitted ?-particle
What would be the equilibrium temperature when a 227 block of copper at 265 is placed in a 155 aluminium calorimeter cup containing 844 of water at 14.50.
What is final total energy of the system
AIlya and Anya each can run at the speed of 8.20 and walk at a speed of 4.00. They set off together on a route of length 5. 0. Anya walks half of the distance and runs the other half, while AIlya walks half of the time and runs the other half.
The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light
A string attached to an oscillator at one end forms 5 nodes (counting the two ends) and produces a frequency of ? = 1.5 kHz. What is the linear density of the string
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