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A 100 gram bullet is fired from a rifle having a barrel 0.8 meter long. Assuming the origin is located where the bullet begins to move, the force (in Newton's) exerted on the bullet by the expanding gas in the positive x direction, with magnitude15000+10000x-25000x2 where x is in meters. Find what work is done by the gas on the bullet, as the bullet travels the length of the barrel?
You have a string with a mass of 12.3 g. You stretch the string with a force of 9.87 N, giving it a length of 1.93m. find the wavelength of the standing wave you creat in the string
A 65.0 kg skier initially at rest begins to slide down at a 10.0 degree slope. how fast will the skier be going a the end of the hill
What is coefficient of friction between chair and floor
at a distance of 16 m from a busy highway the sound intensity level is 66 db. how far away from the highway would you
A less dense liquid of density ρ1 floats on top of a more-dense liquid of density ρ2. Find what fraction of the length is in the more-dense liquid
Determine the linear (tangential) acceleration of the rim of the bicycle's wheels (in the reference frame of a cyclist riding the bike).
A recording engineer works in a soundproofed room that is 50.0 dB quieter than the outside. what is the intensity outside
A 300 g bird flying along at 5.5 m/s sees a 10g insect heading straight toward it with a speed of 25 m/s. What is the bird's speed immediately after swallowing
A 1.50m cylindrical rod of diameter 0.450m is connected to a power supply that maintains a constant potential difference of 13.0V across its ends, Find the temperature coefficient of resistivity at 20 degrees C for the material of the rod
A farsighted person has a near point of 61 cm rather than the normal 25 cm. What strengthlens, in diopters, should be prescribed to correct this visionproblem?
if the radius of the equipotential surface of point charge is 13.5 m at a potential of 2.10 kv what is the magnitude of
The angular momentum of a flywheel having a rotational inertia of 0.250 kg·m2 concerning its central axis decreases from 2.40 to1.000 kg·m2/s in2.00 s. What is the magnitude of the average torque acting on the flywheel about its central axis through ..
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