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A 2000-kg car is traveling at 20 m/s around a curve with a radius of 100 m. What is the angular momentum of the car? (in kg"m2/s)
Light requires 4.5 years to travel from the nearest star to earth. If we could travel there in a spaceship going 90% of the speed of light, the trip would require 5.0 years according to clocks on earth. How much time would pass for the passengers ..
a skier starts from rest at the top of a hill inclined at 10.5 degrees. The hill is 200m long and the coefficient of friction is .075. How far does she slide before coming to a rest
three particles p1 p2 and p3 are located at the points -2.00 -1.00 0 2.00 and 3.00 -1.00 respectively. p1 has a charge
A generator has a square coil consisting of 187 turns. The coil rotates at 83.4 rad/s in a 0.202-T magnetic field. What is the length of one side of the coil
An osprey’s call is a distinct whistle at 2200 {rm Hz}. An osprey calls while diving at you, to drive you away from her nest. You hear the call at 2300 {rm Hz}. Explain how fast is the osprey approaching?
a proton is released from rest at the positive plate of a parallel-plate capacitor. it crosses the capacitor and
The molar mass oxygen gas is 32.0 x 10^-3 kg/mol. If the gas is at 21 degrees C, find the root-mean-square speed for an oxygen molecule
Calculate the focal length of the mirror formed by the shiny bottom of a spoon that has a 3.60 cm radius of curvature. What is its power in diopters?
An electron is accelerated through a potential difference of V=3.8. Find the change in the electron potential energy
The kinetic friction force between surface and disk slows down its linear motion while at the same time making the disk spin on its axis at an accelerating rate. Finally, the disk's rotation catches up with its linear motion, and disk begins to roll ..
Cliff and Will support the board at each end so that it is horizontal. A 61 kg boulder is placed on a 2.00 m long board at a point that is x from Cliff. What is the displacement x of the boulder from Cliff
A machine componant is subjected to the forces and couples shown. The componant is to be held in place by a single rivet that can resist a force but not a couple. determiune the location of the rivet hole
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