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August 30, 2014

Posts by kago


Total # Posts: 11

business studies
Help me with a small business idea.
January 26, 2013

physics
My bad. Retyping the question down here because the symbol didn't appear. Three cubes, of side Lₒ, 2Lₒ, and 3Lₒ, are placed next to one another (in contact) with their centers along a straight line as shown in the figure. What is the position, along this ...
October 21, 2011

physics
Three cubes, of side 0, 20, and 30, are placed next to one another (in contact) with their centers along a straight line as shown in the figure. What is the position, along this line, of the CM of this system? Assume the cubes are made of the same uniform material and 0 = 5.5 ...
October 21, 2011

physic
A 16 g bullet strikes and becomes embedded in a 1.10 kg block of wood placed on a horizontal surface just in front of the gun. If the coefficient of kinetic friction between the block and the surface is 0.24, and the impact drives the block a distance of 9.9 m before it comes ...
October 20, 2011

physics
In order to convert a tough split in bowling, it is necessary to strike the pin a glancing blow as shown in the figure. Assume that the bowling ball, initially traveling at 15.0 m/s, has four times the mass of a pin and that the pin goes off at 75° from the original ...
October 20, 2011

physics
A neon atom (m = 20.0 u) makes a perfectly elastic collision with another atom at rest. After the impact, the neon atom travels away at a 55.2° angle from its original direction and the unknown atom travels away at a 51.8° angle. What is the mass of the unknown atom? [...
October 20, 2011

Physics
A 0.90 × 10^3 kg sports car collides into the rear end of a 2.4 × 10^3 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 4.6 m before stopping. The police officer, estimating the coefficient of kinetic friction ...
October 20, 2011

Physics
A 0.490 kg hockey puck, moving east with a speed of 5.80 m/s, has a head-on collision with a 0.870 kg puck initially at rest. Assume a perfectly elastic collision. (Let east be the +x direction.) (a) What will be the speed of each object after the collision? 0.490 kg puck 0....
October 20, 2011

Science
It worked! You're awesome, thanks!
October 20, 2011

Science
A child in a boat throws a 5.30 kg package out horizontally with a speed of 10 m/s, see the figure. Calculate the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 26.0 kg and that of the boat is 55.0 kg What is the magnitude?
October 20, 2011

Science
A 12 g rifle bullet traveling 220 m/s buries itself in a 3.3 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's maximum displacement.
October 20, 2011

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